/**
 * State-based routing for AngularJS 1.x
 * NOTICE: This monolithic bundle also bundles the @uirouter/core code.
 *         This causes it to be incompatible with plugins that depend on @uirouter/core.
 *         We recommend switching to the ui-router-core.js and ui-router-angularjs.js bundles instead.
 *         For more information, see https://ui-router.github.io/blog/uirouter-for-angularjs-umd-bundles
 * @version v1.0.10
 * @link https://ui-router.github.io
 * @license MIT License, http://www.opensource.org/licenses/MIT
 */
(function (global, factory) {
  typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('angular')) :
    typeof define === 'function' && define.amd ? define(['exports', 'angular'], factory) :
      (factory((global['@uirouter/angularjs'] = {}),global.angular));
}(this, (function (exports,ng_from_import) { 'use strict';

  var ng_from_global = angular;
  var ng = (ng_from_import && ng_from_import.module) ? ng_from_import : ng_from_global;

  /**
   * Higher order functions
   *
   * These utility functions are exported, but are subject to change without notice.
   *
   * @module common_hof
   */ /** */
  /**
   * Returns a new function for [Partial Application](https://en.wikipedia.org/wiki/Partial_application) of the original function.
   *
   * Given a function with N parameters, returns a new function that supports partial application.
   * The new function accepts anywhere from 1 to N parameters.  When that function is called with M parameters,
   * where M is less than N, it returns a new function that accepts the remaining parameters.  It continues to
   * accept more parameters until all N parameters have been supplied.
   *
   *
   * This contrived example uses a partially applied function as an predicate, which returns true
   * if an object is found in both arrays.
   * @example
   * ```
   * // returns true if an object is in both of the two arrays
   * function inBoth(array1, array2, object) {
 *   return array1.indexOf(object) !== -1 &&
 *          array2.indexOf(object) !== 1;
 * }
   * let obj1, obj2, obj3, obj4, obj5, obj6, obj7
   * let foos = [obj1, obj3]
   * let bars = [obj3, obj4, obj5]
   *
   * // A curried "copy" of inBoth
   * let curriedInBoth = curry(inBoth);
   * // Partially apply both the array1 and array2
   * let inFoosAndBars = curriedInBoth(foos, bars);
   *
   * // Supply the final argument; since all arguments are
   * // supplied, the original inBoth function is then called.
   * let obj1InBoth = inFoosAndBars(obj1); // false
   *
   * // Use the inFoosAndBars as a predicate.
   * // Filter, on each iteration, supplies the final argument
   * let allObjs = [ obj1, obj2, obj3, obj4, obj5, obj6, obj7 ];
   * let foundInBoth = allObjs.filter(inFoosAndBars); // [ obj3 ]
   *
   * ```
   *
   * Stolen from: http://stackoverflow.com/questions/4394747/javascript-curry-function
   *
   * @param fn
   * @returns {*|function(): (*|any)}
   */
  function curry(fn) {
    var initial_args = [].slice.apply(arguments, [1]);
    var func_args_length = fn.length;
    function curried(args) {
      if (args.length >= func_args_length)
        return fn.apply(null, args);
      return function () {
        return curried(args.concat([].slice.apply(arguments)));
      };
    }
    return curried(initial_args);
  }
  /**
   * Given a varargs list of functions, returns a function that composes the argument functions, right-to-left
   * given: f(x), g(x), h(x)
   * let composed = compose(f,g,h)
   * then, composed is: f(g(h(x)))
   */
  function compose() {
    var args = arguments;
    var start = args.length - 1;
    return function () {
      var i = start, result = args[start].apply(this, arguments);
      while (i--)
        result = args[i].call(this, result);
      return result;
    };
  }
  /**
   * Given a varargs list of functions, returns a function that is composes the argument functions, left-to-right
   * given: f(x), g(x), h(x)
   * let piped = pipe(f,g,h);
   * then, piped is: h(g(f(x)))
   */
  function pipe() {
    var funcs = [];
    for (var _i = 0; _i < arguments.length; _i++) {
      funcs[_i] = arguments[_i];
    }
    return compose.apply(null, [].slice.call(arguments).reverse());
  }
  /**
   * Given a property name, returns a function that returns that property from an object
   * let obj = { foo: 1, name: "blarg" };
   * let getName = prop("name");
   * getName(obj) === "blarg"
   */
  var prop = function (name) {
    return function (obj) { return obj && obj[name]; };
  };
  /**
   * Given a property name and a value, returns a function that returns a boolean based on whether
   * the passed object has a property that matches the value
   * let obj = { foo: 1, name: "blarg" };
   * let getName = propEq("name", "blarg");
   * getName(obj) === true
   */
  var propEq = curry(function (name, val, obj) { return obj && obj[name] === val; });
  /**
   * Given a dotted property name, returns a function that returns a nested property from an object, or undefined
   * let obj = { id: 1, nestedObj: { foo: 1, name: "blarg" }, };
   * let getName = prop("nestedObj.name");
   * getName(obj) === "blarg"
   * let propNotFound = prop("this.property.doesnt.exist");
   * propNotFound(obj) === undefined
   */
  var parse = function (name) {
    return pipe.apply(null, name.split(".").map(prop));
  };
  /**
   * Given a function that returns a truthy or falsey value, returns a
   * function that returns the opposite (falsey or truthy) value given the same inputs
   */
  var not = function (fn) {
    return function () {
      var args = [];
      for (var _i = 0; _i < arguments.length; _i++) {
        args[_i] = arguments[_i];
      }
      return !fn.apply(null, args);
    };
  };
  /**
   * Given two functions that return truthy or falsey values, returns a function that returns truthy
   * if both functions return truthy for the given arguments
   */
  function and(fn1, fn2) {
    return function () {
      var args = [];
      for (var _i = 0; _i < arguments.length; _i++) {
        args[_i] = arguments[_i];
      }
      return fn1.apply(null, args) && fn2.apply(null, args);
    };
  }
  /**
   * Given two functions that return truthy or falsey values, returns a function that returns truthy
   * if at least one of the functions returns truthy for the given arguments
   */
  function or(fn1, fn2) {
    return function () {
      var args = [];
      for (var _i = 0; _i < arguments.length; _i++) {
        args[_i] = arguments[_i];
      }
      return fn1.apply(null, args) || fn2.apply(null, args);
    };
  }
  /**
   * Check if all the elements of an array match a predicate function
   *
   * @param fn1 a predicate function `fn1`
   * @returns a function which takes an array and returns true if `fn1` is true for all elements of the array
   */
  var all = function (fn1) {
    return function (arr) { return arr.reduce(function (b, x) { return b && !!fn1(x); }, true); };
  };
  var any = function (fn1) {
    return function (arr) { return arr.reduce(function (b, x) { return b || !!fn1(x); }, false); };
  };
  /** Given a class, returns a Predicate function that returns true if the object is of that class */
  var is = function (ctor) {
    return function (obj) {
      return (obj != null && obj.constructor === ctor || obj instanceof ctor);
    };
  };
  /** Given a value, returns a Predicate function that returns true if another value is === equal to the original value */
  var eq = function (val) { return function (other) {
    return val === other;
  }; };
  /** Given a value, returns a function which returns the value */
  var val = function (v) { return function () { return v; }; };
  function invoke(fnName, args) {
    return function (obj) {
      return obj[fnName].apply(obj, args);
    };
  }
  /**
   * Sorta like Pattern Matching (a functional programming conditional construct)
   *
   * See http://c2.com/cgi/wiki?PatternMatching
   *
   * This is a conditional construct which allows a series of predicates and output functions
   * to be checked and then applied.  Each predicate receives the input.  If the predicate
   * returns truthy, then its matching output function (mapping function) is provided with
   * the input and, then the result is returned.
   *
   * Each combination (2-tuple) of predicate + output function should be placed in an array
   * of size 2: [ predicate, mapFn ]
   *
   * These 2-tuples should be put in an outer array.
   *
   * @example
   * ```
   *
   * // Here's a 2-tuple where the first element is the isString predicate
   * // and the second element is a function that returns a description of the input
   * let firstTuple = [ angular.isString, (input) => `Heres your string ${input}` ];
   *
   * // Second tuple: predicate "isNumber", mapfn returns a description
   * let secondTuple = [ angular.isNumber, (input) => `(${input}) That's a number!` ];
   *
   * let third = [ (input) => input === null,  (input) => `Oh, null...` ];
   *
   * let fourth = [ (input) => input === undefined,  (input) => `notdefined` ];
   *
   * let descriptionOf = pattern([ firstTuple, secondTuple, third, fourth ]);
   *
   * console.log(descriptionOf(undefined)); // 'notdefined'
   * console.log(descriptionOf(55)); // '(55) That's a number!'
   * console.log(descriptionOf("foo")); // 'Here's your string foo'
   * ```
   *
   * @param struct A 2D array.  Each element of the array should be an array, a 2-tuple,
   * with a Predicate and a mapping/output function
   * @returns {function(any): *}
   */
  function pattern(struct) {
    return function (x) {
      for (var i = 0; i < struct.length; i++) {
        if (struct[i][0](x))
          return struct[i][1](x);
      }
    };
  }

  /**
   * @coreapi
   * @module core
   */
  /**
   * Matches state names using glob-like pattern strings.
   *
   * Globs can be used in specific APIs including:
   *
   * - [[StateService.is]]
   * - [[StateService.includes]]
   * - The first argument to Hook Registration functions like [[TransitionService.onStart]]
   *    - [[HookMatchCriteria]] and [[HookMatchCriterion]]
   *
   * A `Glob` string is a pattern which matches state names.
   * Nested state names are split into segments (separated by a dot) when processing.
   * The state named `foo.bar.baz` is split into three segments ['foo', 'bar', 'baz']
   *
   * Globs work according to the following rules:
   *
   * ### Exact match:
   *
   * The glob `'A.B'` matches the state named exactly `'A.B'`.
   *
   * | Glob        |Matches states named|Does not match state named|
   * |:------------|:--------------------|:---------------------|
   * | `'A'`       | `'A'`               | `'B'` , `'A.C'`      |
   * | `'A.B'`     | `'A.B'`             | `'A'` , `'A.B.C'`    |
   * | `'foo'`     | `'foo'`             | `'FOO'` , `'foo.bar'`|
   *
   * ### Single star (`*`)
   *
   * A single star (`*`) is a wildcard that matches exactly one segment.
   *
   * | Glob        |Matches states named  |Does not match state named |
   * |:------------|:---------------------|:--------------------------|
   * | `'*'`       | `'A'` , `'Z'`        | `'A.B'` , `'Z.Y.X'`       |
   * | `'A.*'`     | `'A.B'` , `'A.C'`    | `'A'` , `'A.B.C'`         |
   * | `'A.*.*'`   | `'A.B.C'` , `'A.X.Y'`| `'A'`, `'A.B'` , `'Z.Y.X'`|
   *
   * ### Double star (`**`)
   *
   * A double star (`'**'`) is a wildcard that matches *zero or more segments*
   *
   * | Glob        |Matches states named                           |Does not match state named         |
   * |:------------|:----------------------------------------------|:----------------------------------|
   * | `'**'`      | `'A'` , `'A.B'`, `'Z.Y.X'`                    | (matches all states)              |
   * | `'A.**'`    | `'A'` , `'A.B'` , `'A.C.X'`                   | `'Z.Y.X'`                         |
   * | `'**.X'`    | `'X'` , `'A.X'` , `'Z.Y.X'`                   | `'A'` , `'A.login.Z'`             |
   * | `'A.**.X'`  | `'A.X'` , `'A.B.X'` , `'A.B.C.X'`             | `'A'` , `'A.B.C'`                 |
   *
   */
  var Glob = /** @class */ (function () {
    function Glob(text) {
      this.text = text;
      this.glob = text.split('.');
      var regexpString = this.text.split('.')
        .map(function (seg) {
          if (seg === '**')
            return '(?:|(?:\\.[^.]*)*)';
          if (seg === '*')
            return '\\.[^.]*';
          return '\\.' + seg;
        }).join('');
      this.regexp = new RegExp("^" + regexpString + "$");
    }
    Glob.prototype.matches = function (name) {
      return this.regexp.test('.' + name);
    };
    /** Returns true if the string has glob-like characters in it */
    Glob.is = function (text) {
      return !!/[!,*]+/.exec(text);
    };
    /** Returns a glob from the string, or null if the string isn't Glob-like */
    Glob.fromString = function (text) {
      return Glob.is(text) ? new Glob(text) : null;
    };
    return Glob;
  }());

  /**
   * Internal representation of a UI-Router state.
   *
   * Instances of this class are created when a [[StateDeclaration]] is registered with the [[StateRegistry]].
   *
   * A registered [[StateDeclaration]] is augmented with a getter ([[StateDeclaration.$$state]]) which returns the corresponding [[StateObject]] object.
   *
   * This class prototypally inherits from the corresponding [[StateDeclaration]].
   * Each of its own properties (i.e., `hasOwnProperty`) are built using builders from the [[StateBuilder]].
   */
  var StateObject = /** @class */ (function () {
    /** @deprecated use State.create() */
    function StateObject(config) {
      return StateObject.create(config || {});
    }
    /**
     * Create a state object to put the private/internal implementation details onto.
     * The object's prototype chain looks like:
     * (Internal State Object) -> (Copy of State.prototype) -> (State Declaration object) -> (State Declaration's prototype...)
     *
     * @param stateDecl the user-supplied State Declaration
     * @returns {StateObject} an internal State object
     */
    StateObject.create = function (stateDecl) {
      stateDecl = StateObject.isStateClass(stateDecl) ? new stateDecl() : stateDecl;
      var state = inherit(inherit(stateDecl, StateObject.prototype));
      stateDecl.$$state = function () { return state; };
      state.self = stateDecl;
      state.__stateObjectCache = {
        nameGlob: Glob.fromString(state.name) // might return null
      };
      return state;
    };
    /**
     * Returns true if the provided parameter is the same state.
     *
     * Compares the identity of the state against the passed value, which is either an object
     * reference to the actual `State` instance, the original definition object passed to
     * `$stateProvider.state()`, or the fully-qualified name.
     *
     * @param ref Can be one of (a) a `State` instance, (b) an object that was passed
     *        into `$stateProvider.state()`, (c) the fully-qualified name of a state as a string.
     * @returns Returns `true` if `ref` matches the current `State` instance.
     */
    StateObject.prototype.is = function (ref) {
      return this === ref || this.self === ref || this.fqn() === ref;
    };
    /**
     * @deprecated this does not properly handle dot notation
     * @returns Returns a dot-separated name of the state.
     */
    StateObject.prototype.fqn = function () {
      if (!this.parent || !(this.parent instanceof this.constructor))
        return this.name;
      var name = this.parent.fqn();
      return name ? name + "." + this.name : this.name;
    };
    /**
     * Returns the root node of this state's tree.
     *
     * @returns The root of this state's tree.
     */
    StateObject.prototype.root = function () {
      return this.parent && this.parent.root() || this;
    };
    /**
     * Gets the state's `Param` objects
     *
     * Gets the list of [[Param]] objects owned by the state.
     * If `opts.inherit` is true, it also includes the ancestor states' [[Param]] objects.
     * If `opts.matchingKeys` exists, returns only `Param`s whose `id` is a key on the `matchingKeys` object
     *
     * @param opts options
     */
    StateObject.prototype.parameters = function (opts) {
      opts = defaults(opts, { inherit: true, matchingKeys: null });
      var inherited = opts.inherit && this.parent && this.parent.parameters() || [];
      return inherited.concat(values(this.params))
        .filter(function (param) { return !opts.matchingKeys || opts.matchingKeys.hasOwnProperty(param.id); });
    };
    /**
     * Returns a single [[Param]] that is owned by the state
     *
     * If `opts.inherit` is true, it also searches the ancestor states` [[Param]]s.
     * @param id the name of the [[Param]] to return
     * @param opts options
     */
    StateObject.prototype.parameter = function (id, opts) {
      if (opts === void 0) { opts = {}; }
      return (this.url && this.url.parameter(id, opts) ||
        find(values(this.params), propEq('id', id)) ||
        opts.inherit && this.parent && this.parent.parameter(id));
    };
    StateObject.prototype.toString = function () {
      return this.fqn();
    };
    /** Predicate which returns true if the object is an class with @State() decorator */
    StateObject.isStateClass = function (stateDecl) {
      return isFunction(stateDecl) && stateDecl['__uiRouterState'] === true;
    };
    /** Predicate which returns true if the object is an internal [[StateObject]] object */
    StateObject.isState = function (obj) {
      return isObject(obj['__stateObjectCache']);
    };
    return StateObject;
  }());

  /** Predicates
   *
   * These predicates return true/false based on the input.
   * Although these functions are exported, they are subject to change without notice.
   *
   * @module common_predicates
   */
  /** */
  var toStr = Object.prototype.toString;
  var tis = function (t) { return function (x) { return typeof (x) === t; }; };
  var isUndefined = tis('undefined');
  var isDefined = not(isUndefined);
  var isNull = function (o) { return o === null; };
  var isNullOrUndefined = or(isNull, isUndefined);
  var isFunction = tis('function');
  var isNumber = tis('number');
  var isString = tis('string');
  var isObject = function (x) { return x !== null && typeof x === 'object'; };
  var isArray = Array.isArray;
  var isDate = (function (x) { return toStr.call(x) === '[object Date]'; });
  var isRegExp = (function (x) { return toStr.call(x) === '[object RegExp]'; });
  var isState = StateObject.isState;
  /**
   * Predicate which checks if a value is injectable
   *
   * A value is "injectable" if it is a function, or if it is an ng1 array-notation-style array
   * where all the elements in the array are Strings, except the last one, which is a Function
   */
  function isInjectable(val$$1) {
    if (isArray(val$$1) && val$$1.length) {
      var head = val$$1.slice(0, -1), tail = val$$1.slice(-1);
      return !(head.filter(not(isString)).length || tail.filter(not(isFunction)).length);
    }
    return isFunction(val$$1);
  }
  /**
   * Predicate which checks if a value looks like a Promise
   *
   * It is probably a Promise if it's an object, and it has a `then` property which is a Function
   */
  var isPromise = and(isObject, pipe(prop('then'), isFunction));

  var notImplemented = function (fnname) { return function () {
    throw new Error(fnname + "(): No coreservices implementation for UI-Router is loaded.");
  }; };
  var services = {
    $q: undefined,
    $injector: undefined,
  };

  /**
   * Random utility functions used in the UI-Router code
   *
   * These functions are exported, but are subject to change without notice.
   *
   * @preferred
   * @module common
   */
  /** for typedoc */
  var root = (typeof self === 'object' && self.self === self && self) ||
    (typeof global === 'object' && global.global === global && global) || undefined;
  var angular$1 = root.angular || {};
  var fromJson = angular$1.fromJson || JSON.parse.bind(JSON);
  var toJson = angular$1.toJson || JSON.stringify.bind(JSON);
  var forEach = angular$1.forEach || _forEach;
  var extend = Object.assign || _extend;
  var equals = angular$1.equals || _equals;
  function identity(x) { return x; }
  function noop$1() { }
  /**
   * Builds proxy functions on the `to` object which pass through to the `from` object.
   *
   * For each key in `fnNames`, creates a proxy function on the `to` object.
   * The proxy function calls the real function on the `from` object.
   *
   *
   * #### Example:
   * This example creates an new class instance whose functions are prebound to the new'd object.
   * ```js
   * class Foo {
 *   constructor(data) {
 *     // Binds all functions from Foo.prototype to 'this',
 *     // then copies them to 'this'
 *     bindFunctions(Foo.prototype, this, this);
 *     this.data = data;
 *   }
 *
 *   log() {
 *     console.log(this.data);
 *   }
 * }
   *
   * let myFoo = new Foo([1,2,3]);
   * var logit = myFoo.log;
   * logit(); // logs [1, 2, 3] from the myFoo 'this' instance
   * ```
   *
   * #### Example:
   * This example creates a bound version of a service function, and copies it to another object
   * ```
   *
   * var SomeService = {
 *   this.data = [3, 4, 5];
 *   this.log = function() {
 *     console.log(this.data);
 *   }
 * }
   *
   * // Constructor fn
   * function OtherThing() {
 *   // Binds all functions from SomeService to SomeService,
 *   // then copies them to 'this'
 *   bindFunctions(SomeService, this, SomeService);
 * }
   *
   * let myOtherThing = new OtherThing();
   * myOtherThing.log(); // logs [3, 4, 5] from SomeService's 'this'
   * ```
   *
   * @param source A function that returns the source object which contains the original functions to be bound
   * @param target A function that returns the target object which will receive the bound functions
   * @param bind A function that returns the object which the functions will be bound to
   * @param fnNames The function names which will be bound (Defaults to all the functions found on the 'from' object)
   * @param latebind If true, the binding of the function is delayed until the first time it's invoked
   */
  function createProxyFunctions(source, target, bind, fnNames, latebind) {
    if (latebind === void 0) { latebind = false; }
    var bindFunction = function (fnName) {
      return source()[fnName].bind(bind());
    };
    var makeLateRebindFn = function (fnName) { return function lateRebindFunction() {
      target[fnName] = bindFunction(fnName);
      return target[fnName].apply(null, arguments);
    }; };
    fnNames = fnNames || Object.keys(source());
    return fnNames.reduce(function (acc, name) {
      acc[name] = latebind ? makeLateRebindFn(name) : bindFunction(name);
      return acc;
    }, target);
  }
  /**
   * prototypal inheritance helper.
   * Creates a new object which has `parent` object as its prototype, and then copies the properties from `extra` onto it
   */
  var inherit = function (parent, extra) {
    return extend(Object.create(parent), extra);
  };
  /** Given an array, returns true if the object is found in the array, (using indexOf) */
  var inArray = curry(_inArray);
  function _inArray(array, obj) {
    return array.indexOf(obj) !== -1;
  }
  /**
   * Given an array, and an item, if the item is found in the array, it removes it (in-place).
   * The same array is returned
   */
  var removeFrom = curry(_removeFrom);
  function _removeFrom(array, obj) {
    var idx = array.indexOf(obj);
    if (idx >= 0)
      array.splice(idx, 1);
    return array;
  }
  /** pushes a values to an array and returns the value */
  var pushTo = curry(_pushTo);
  function _pushTo(arr, val$$1) {
    return (arr.push(val$$1), val$$1);
  }
  /** Given an array of (deregistration) functions, calls all functions and removes each one from the source array */
  var deregAll = function (functions) {
    return functions.slice().forEach(function (fn) {
      typeof fn === 'function' && fn();
      removeFrom(functions, fn);
    });
  };
  /**
   * Applies a set of defaults to an options object.  The options object is filtered
   * to only those properties of the objects in the defaultsList.
   * Earlier objects in the defaultsList take precedence when applying defaults.
   */
  function defaults(opts) {
    var defaultsList = [];
    for (var _i = 1; _i < arguments.length; _i++) {
      defaultsList[_i - 1] = arguments[_i];
    }
    var _defaultsList = defaultsList.concat({}).reverse();
    var defaultVals = extend.apply(null, _defaultsList);
    return extend({}, defaultVals, pick(opts || {}, Object.keys(defaultVals)));
  }
  /** Reduce function that merges each element of the list into a single object, using extend */
  var mergeR = function (memo, item) { return extend(memo, item); };
  /**
   * Finds the common ancestor path between two states.
   *
   * @param {Object} first The first state.
   * @param {Object} second The second state.
   * @return {Array} Returns an array of state names in descending order, not including the root.
   */
  function ancestors(first, second) {
    var path = [];
    for (var n in first.path) {
      if (first.path[n] !== second.path[n])
        break;
      path.push(first.path[n]);
    }
    return path;
  }
  /**
   * Return a copy of the object only containing the whitelisted properties.
   *
   * #### Example:
   * ```
   * var foo = { a: 1, b: 2, c: 3 };
   * var ab = pick(foo, ['a', 'b']); // { a: 1, b: 2 }
   * ```
   * @param obj the source object
   * @param propNames an Array of strings, which are the whitelisted property names
   */
  function pick(obj, propNames) {
    var objCopy = {};
    for (var prop_1 in obj) {
      if (propNames.indexOf(prop_1) !== -1) {
        objCopy[prop_1] = obj[prop_1];
      }
    }
    return objCopy;
  }
  /**
   * Return a copy of the object omitting the blacklisted properties.
   *
   * @example
   * ```
   *
   * var foo = { a: 1, b: 2, c: 3 };
   * var ab = omit(foo, ['a', 'b']); // { c: 3 }
   * ```
   * @param obj the source object
   * @param propNames an Array of strings, which are the blacklisted property names
   */
  function omit(obj, propNames) {
    return Object.keys(obj)
      .filter(not(inArray(propNames)))
      .reduce(function (acc, key) { return (acc[key] = obj[key], acc); }, {});
  }
  /**
   * Maps an array, or object to a property (by name)
   */
  function pluck(collection, propName) {
    return map(collection, prop(propName));
  }
  /** Filters an Array or an Object's properties based on a predicate */
  function filter(collection, callback) {
    var arr = isArray(collection), result = arr ? [] : {};
    var accept = arr ? function (x) { return result.push(x); } : function (x, key) { return result[key] = x; };
    forEach(collection, function (item, i) {
      if (callback(item, i))
        accept(item, i);
    });
    return result;
  }
  /** Finds an object from an array, or a property of an object, that matches a predicate */
  function find(collection, callback) {
    var result;
    forEach(collection, function (item, i) {
      if (result)
        return;
      if (callback(item, i))
        result = item;
    });
    return result;
  }
  /** Given an object, returns a new object, where each property is transformed by the callback function */
  var mapObj = map;
  /** Maps an array or object properties using a callback function */
  function map(collection, callback) {
    var result = isArray(collection) ? [] : {};
    forEach(collection, function (item, i) { return result[i] = callback(item, i); });
    return result;
  }
  /**
   * Given an object, return its enumerable property values
   *
   * @example
   * ```
   *
   * let foo = { a: 1, b: 2, c: 3 }
   * let vals = values(foo); // [ 1, 2, 3 ]
   * ```
   */
  var values = function (obj) {
    return Object.keys(obj).map(function (key) { return obj[key]; });
  };
  /**
   * Reduce function that returns true if all of the values are truthy.
   *
   * @example
   * ```
   *
   * let vals = [ 1, true, {}, "hello world"];
   * vals.reduce(allTrueR, true); // true
   *
   * vals.push(0);
   * vals.reduce(allTrueR, true); // false
   * ```
   */
  var allTrueR = function (memo, elem) { return memo && elem; };
  /**
   * Reduce function that returns true if any of the values are truthy.
   *
   *  * @example
   * ```
   *
   * let vals = [ 0, null, undefined ];
   * vals.reduce(anyTrueR, true); // false
   *
   * vals.push("hello world");
   * vals.reduce(anyTrueR, true); // true
   * ```
   */
  var anyTrueR = function (memo, elem) { return memo || elem; };
  /**
   * Reduce function which un-nests a single level of arrays
   * @example
   * ```
   *
   * let input = [ [ "a", "b" ], [ "c", "d" ], [ [ "double", "nested" ] ] ];
   * input.reduce(unnestR, []) // [ "a", "b", "c", "d", [ "double, "nested" ] ]
   * ```
   */
  var unnestR = function (memo, elem) { return memo.concat(elem); };
  /**
   * Reduce function which recursively un-nests all arrays
   *
   * @example
   * ```
   *
   * let input = [ [ "a", "b" ], [ "c", "d" ], [ [ "double", "nested" ] ] ];
   * input.reduce(unnestR, []) // [ "a", "b", "c", "d", "double, "nested" ]
   * ```
   */
  var flattenR = function (memo, elem) {
    return isArray(elem) ? memo.concat(elem.reduce(flattenR, [])) : pushR(memo, elem);
  };
  /**
   * Reduce function that pushes an object to an array, then returns the array.
   * Mostly just for [[flattenR]] and [[uniqR]]
   */
  function pushR(arr, obj) {
    arr.push(obj);
    return arr;
  }
  /** Reduce function that filters out duplicates */
  var uniqR = function (acc, token) {
    return inArray(acc, token) ? acc : pushR(acc, token);
  };
  /**
   * Return a new array with a single level of arrays unnested.
   *
   * @example
   * ```
   *
   * let input = [ [ "a", "b" ], [ "c", "d" ], [ [ "double", "nested" ] ] ];
   * unnest(input) // [ "a", "b", "c", "d", [ "double, "nested" ] ]
   * ```
   */
  var unnest = function (arr) { return arr.reduce(unnestR, []); };
  /**
   * Return a completely flattened version of an array.
   *
   * @example
   * ```
   *
   * let input = [ [ "a", "b" ], [ "c", "d" ], [ [ "double", "nested" ] ] ];
   * flatten(input) // [ "a", "b", "c", "d", "double, "nested" ]
   * ```
   */
  var flatten = function (arr) { return arr.reduce(flattenR, []); };
  /**
   * Given a .filter Predicate, builds a .filter Predicate which throws an error if any elements do not pass.
   * @example
   * ```
   *
   * let isNumber = (obj) => typeof(obj) === 'number';
   * let allNumbers = [ 1, 2, 3, 4, 5 ];
   * allNumbers.filter(assertPredicate(isNumber)); //OK
   *
   * let oneString = [ 1, 2, 3, 4, "5" ];
   * oneString.filter(assertPredicate(isNumber, "Not all numbers")); // throws Error(""Not all numbers"");
   * ```
   */
  var assertPredicate = assertFn;
  /**
   * Given a .map function, builds a .map function which throws an error if any mapped elements do not pass a truthyness test.
   * @example
   * ```
   *
   * var data = { foo: 1, bar: 2 };
   *
   * let keys = [ 'foo', 'bar' ]
   * let values = keys.map(assertMap(key => data[key], "Key not found"));
   * // values is [1, 2]
   *
   * let keys = [ 'foo', 'bar', 'baz' ]
   * let values = keys.map(assertMap(key => data[key], "Key not found"));
   * // throws Error("Key not found")
   * ```
   */
  var assertMap = assertFn;
  function assertFn(predicateOrMap, errMsg) {
    if (errMsg === void 0) { errMsg = "assert failure"; }
    return function (obj) {
      var result = predicateOrMap(obj);
      if (!result) {
        throw new Error(isFunction(errMsg) ? errMsg(obj) : errMsg);
      }
      return result;
    };
  }
  /**
   * Like _.pairs: Given an object, returns an array of key/value pairs
   *
   * @example
   * ```
   *
   * pairs({ foo: "FOO", bar: "BAR }) // [ [ "foo", "FOO" ], [ "bar": "BAR" ] ]
   * ```
   */
  var pairs = function (obj) {
    return Object.keys(obj).map(function (key) { return [key, obj[key]]; });
  };
  /**
   * Given two or more parallel arrays, returns an array of tuples where
   * each tuple is composed of [ a[i], b[i], ... z[i] ]
   *
   * @example
   * ```
   *
   * let foo = [ 0, 2, 4, 6 ];
   * let bar = [ 1, 3, 5, 7 ];
   * let baz = [ 10, 30, 50, 70 ];
   * arrayTuples(foo, bar);       // [ [0, 1], [2, 3], [4, 5], [6, 7] ]
   * arrayTuples(foo, bar, baz);  // [ [0, 1, 10], [2, 3, 30], [4, 5, 50], [6, 7, 70] ]
   * ```
   */
  function arrayTuples() {
    var args = [];
    for (var _i = 0; _i < arguments.length; _i++) {
      args[_i] = arguments[_i];
    }
    if (args.length === 0)
      return [];
    var maxArrayLen = args.reduce(function (min, arr) { return Math.min(arr.length, min); }, 9007199254740991); // aka 2^53 âˆ’ 1 aka Number.MAX_SAFE_INTEGER
    var i, result = [];
    for (i = 0; i < maxArrayLen; i++) {
      // This is a hot function
      // Unroll when there are 1-4 arguments
      switch (args.length) {
        case 1:
          result.push([args[0][i]]);
          break;
        case 2:
          result.push([args[0][i], args[1][i]]);
          break;
        case 3:
          result.push([args[0][i], args[1][i], args[2][i]]);
          break;
        case 4:
          result.push([args[0][i], args[1][i], args[2][i], args[3][i]]);
          break;
        default:
          result.push(args.map(function (array) { return array[i]; }));
          break;
      }
    }
    return result;
  }
  /**
   * Reduce function which builds an object from an array of [key, value] pairs.
   *
   * Each iteration sets the key/val pair on the memo object, then returns the memo for the next iteration.
   *
   * Each keyValueTuple should be an array with values [ key: string, value: any ]
   *
   * @example
   * ```
   *
   * var pairs = [ ["fookey", "fooval"], ["barkey", "barval"] ]
   *
   * var pairsToObj = pairs.reduce((memo, pair) => applyPairs(memo, pair), {})
   * // pairsToObj == { fookey: "fooval", barkey: "barval" }
   *
   * // Or, more simply:
   * var pairsToObj = pairs.reduce(applyPairs, {})
   * // pairsToObj == { fookey: "fooval", barkey: "barval" }
   * ```
   */
  function applyPairs(memo, keyValTuple) {
    var key, value;
    if (isArray(keyValTuple))
      key = keyValTuple[0], value = keyValTuple[1];
    if (!isString(key))
      throw new Error("invalid parameters to applyPairs");
    memo[key] = value;
    return memo;
  }
  /** Get the last element of an array */
  function tail(arr) {
    return arr.length && arr[arr.length - 1] || undefined;
  }
  /**
   * shallow copy from src to dest
   */
  function copy(src, dest) {
    if (dest)
      Object.keys(dest).forEach(function (key) { return delete dest[key]; });
    if (!dest)
      dest = {};
    return extend(dest, src);
  }
  /** Naive forEach implementation works with Objects or Arrays */
  function _forEach(obj, cb, _this) {
    if (isArray(obj))
      return obj.forEach(cb, _this);
    Object.keys(obj).forEach(function (key) { return cb(obj[key], key); });
  }
  function _extend(toObj) {
    for (var i = 1; i < arguments.length; i++) {
      var obj = arguments[i];
      if (!obj)
        continue;
      var keys = Object.keys(obj);
      for (var j = 0; j < keys.length; j++) {
        toObj[keys[j]] = obj[keys[j]];
      }
    }
    return toObj;
  }
  function _equals(o1, o2) {
    if (o1 === o2)
      return true;
    if (o1 === null || o2 === null)
      return false;
    if (o1 !== o1 && o2 !== o2)
      return true; // NaN === NaN
    var t1 = typeof o1, t2 = typeof o2;
    if (t1 !== t2 || t1 !== 'object')
      return false;
    var tup = [o1, o2];
    if (all(isArray)(tup))
      return _arraysEq(o1, o2);
    if (all(isDate)(tup))
      return o1.getTime() === o2.getTime();
    if (all(isRegExp)(tup))
      return o1.toString() === o2.toString();
    if (all(isFunction)(tup))
      return true; // meh
    var predicates = [isFunction, isArray, isDate, isRegExp];
    if (predicates.map(any).reduce(function (b, fn) { return b || !!fn(tup); }, false))
      return false;
    var key, keys = {};
    for (key in o1) {
      if (!_equals(o1[key], o2[key]))
        return false;
      keys[key] = true;
    }
    for (key in o2) {
      if (!keys[key])
        return false;
    }
    return true;
  }
  function _arraysEq(a1, a2) {
    if (a1.length !== a2.length)
      return false;
    return arrayTuples(a1, a2).reduce(function (b, t) { return b && _equals(t[0], t[1]); }, true);
  }
// issue #2676
  var silenceUncaughtInPromise = function (promise) {
    return promise.catch(function (e) { return 0; }) && promise;
  };
  var silentRejection = function (error) {
    return silenceUncaughtInPromise(services.$q.reject(error));
  };

  /**
   * @module common
   */ /** for typedoc */
  var Queue = /** @class */ (function () {
      function Queue(_items, _limit) {
        if (_items === void 0) { _items = []; }
        if (_limit === void 0) { _limit = null; }
        this._items = _items;
        this._limit = _limit;
      }
      Queue.prototype.enqueue = function (item) {
        var items = this._items;
        items.push(item);
        if (this._limit && items.length > this._limit)
          items.shift();
        return item;
      };
      Queue.prototype.dequeue = function () {
        if (this.size())
          return this._items.splice(0, 1)[0];
      };
      Queue.prototype.clear = function () {
        var current = this._items;
        this._items = [];
        return current;
      };
      Queue.prototype.size = function () {
        return this._items.length;
      };
      Queue.prototype.remove = function (item) {
        var idx = this._items.indexOf(item);
        return idx > -1 && this._items.splice(idx, 1)[0];
      };
      Queue.prototype.peekTail = function () {
        return this._items[this._items.length - 1];
      };
      Queue.prototype.peekHead = function () {
        if (this.size())
          return this._items[0];
      };
      return Queue;
    }());

  /**
   * @coreapi
   * @module transition
   */ /** for typedoc */
  "use strict";

  (function (RejectType) {
    RejectType[RejectType["SUPERSEDED"] = 2] = "SUPERSEDED";
    RejectType[RejectType["ABORTED"] = 3] = "ABORTED";
    RejectType[RejectType["INVALID"] = 4] = "INVALID";
    RejectType[RejectType["IGNORED"] = 5] = "IGNORED";
    RejectType[RejectType["ERROR"] = 6] = "ERROR";
  })(exports.RejectType || (exports.RejectType = {}));
  /** @hidden */ var id = 0;
  var Rejection = /** @class */ (function () {
    function Rejection(type, message, detail) {
      this.$id = id++;
      this.type = type;
      this.message = message;
      this.detail = detail;
    }
    Rejection.prototype.toString = function () {
      var detailString = function (d) {
        return d && d.toString !== Object.prototype.toString ? d.toString() : stringify(d);
      };
      var detail = detailString(this.detail);
      var _a = this, $id = _a.$id, type = _a.type, message = _a.message;
      return "Transition Rejection($id: " + $id + " type: " + type + ", message: " + message + ", detail: " + detail + ")";
    };
    Rejection.prototype.toPromise = function () {
      return extend(silentRejection(this), { _transitionRejection: this });
    };
    /** Returns true if the obj is a rejected promise created from the `asPromise` factory */
    Rejection.isRejectionPromise = function (obj) {
      return obj && (typeof obj.then === 'function') && is(Rejection)(obj._transitionRejection);
    };
    /** Returns a Rejection due to transition superseded */
    Rejection.superseded = function (detail, options) {
      var message = "The transition has been superseded by a different transition";
      var rejection = new Rejection(exports.RejectType.SUPERSEDED, message, detail);
      if (options && options.redirected) {
        rejection.redirected = true;
      }
      return rejection;
    };
    /** Returns a Rejection due to redirected transition */
    Rejection.redirected = function (detail) {
      return Rejection.superseded(detail, { redirected: true });
    };
    /** Returns a Rejection due to invalid transition */
    Rejection.invalid = function (detail) {
      var message = "This transition is invalid";
      return new Rejection(exports.RejectType.INVALID, message, detail);
    };
    /** Returns a Rejection due to ignored transition */
    Rejection.ignored = function (detail) {
      var message = "The transition was ignored";
      return new Rejection(exports.RejectType.IGNORED, message, detail);
    };
    /** Returns a Rejection due to aborted transition */
    Rejection.aborted = function (detail) {
      var message = "The transition has been aborted";
      return new Rejection(exports.RejectType.ABORTED, message, detail);
    };
    /** Returns a Rejection due to aborted transition */
    Rejection.errored = function (detail) {
      var message = "The transition errored";
      return new Rejection(exports.RejectType.ERROR, message, detail);
    };
    /**
     * Returns a Rejection
     *
     * Normalizes a value as a Rejection.
     * If the value is already a Rejection, returns it.
     * Otherwise, wraps and returns the value as a Rejection (Rejection type: ERROR).
     *
     * @returns `detail` if it is already a `Rejection`, else returns an ERROR Rejection.
     */
    Rejection.normalize = function (detail) {
      return is(Rejection)(detail) ? detail : Rejection.errored(detail);
    };
    return Rejection;
  }());

  /**
   * # Transition tracing (debug)
   *
   * Enable transition tracing to print transition information to the console,
   * in order to help debug your application.
   * Tracing logs detailed information about each Transition to your console.
   *
   * To enable tracing, import the [[Trace]] singleton and enable one or more categories.
   *
   * ### ES6
   * ```js
   * import {trace} from "ui-router-ng2"; // or "angular-ui-router"
   * trace.enable(1, 5); // TRANSITION and VIEWCONFIG
   * ```
   *
   * ### CJS
   * ```js
   * let trace = require("angular-ui-router").trace; // or "ui-router-ng2"
   * trace.enable("TRANSITION", "VIEWCONFIG");
   * ```
   *
   * ### Globals
   * ```js
   * let trace = window["angular-ui-router"].trace; // or "ui-router-ng2"
   * trace.enable(); // Trace everything (very verbose)
   * ```
   *
   * ### Angular 1:
   * ```js
   * app.run($trace => $trace.enable());
   * ```
   *
   * @coreapi
   * @module trace
   */ /** for typedoc */
  /** @hidden */
  function uiViewString(uiview) {
    if (!uiview)
      return 'ui-view (defunct)';
    var state = uiview.creationContext ? uiview.creationContext.name || '(root)' : '(none)';
    return "[ui-view#" + uiview.id + " " + uiview.$type + ":" + uiview.fqn + " (" + uiview.name + "@" + state + ")]";
  }
  /** @hidden */
  var viewConfigString = function (viewConfig) {
    var view = viewConfig.viewDecl;
    var state = view.$context.name || '(root)';
    return "[View#" + viewConfig.$id + " from '" + state + "' state]: target ui-view: '" + view.$uiViewName + "@" + view.$uiViewContextAnchor + "'";
  };
  /** @hidden */
  function normalizedCat(input) {
    return isNumber(input) ? exports.Category[input] : exports.Category[exports.Category[input]];
  }
  /** @hidden */
  var consoleLog = Function.prototype.bind.call(console.log, console);
  /** @hidden */
  var consoletable = isFunction(console.table) ? console.table.bind(console) : consoleLog.bind(console);
  /**
   * Trace categories Enum
   *
   * Enable or disable a category using [[Trace.enable]] or [[Trace.disable]]
   *
   * `trace.enable(Category.TRANSITION)`
   *
   * These can also be provided using a matching string, or position ordinal
   *
   * `trace.enable("TRANSITION")`
   *
   * `trace.enable(1)`
   */

  (function (Category) {
    Category[Category["RESOLVE"] = 0] = "RESOLVE";
    Category[Category["TRANSITION"] = 1] = "TRANSITION";
    Category[Category["HOOK"] = 2] = "HOOK";
    Category[Category["UIVIEW"] = 3] = "UIVIEW";
    Category[Category["VIEWCONFIG"] = 4] = "VIEWCONFIG";
  })(exports.Category || (exports.Category = {}));
  /** @hidden */ var _tid = parse("$id");
  /** @hidden */ var _rid = parse("router.$id");
  /** @hidden */ var transLbl = function (trans) { return "Transition #" + _tid(trans) + "-" + _rid(trans); };
  /**
   * Prints UI-Router Transition trace information to the console.
   */
  var Trace = /** @class */ (function () {
    /** @hidden */
    function Trace() {
      /** @hidden */
      this._enabled = {};
      this.approximateDigests = 0;
    }
    /** @hidden */
    Trace.prototype._set = function (enabled, categories) {
      var _this = this;
      if (!categories.length) {
        categories = Object.keys(exports.Category)
          .map(function (k) { return parseInt(k, 10); })
          .filter(function (k) { return !isNaN(k); })
          .map(function (key) { return exports.Category[key]; });
      }
      categories.map(normalizedCat).forEach(function (category) { return _this._enabled[category] = enabled; });
    };
    Trace.prototype.enable = function () {
      var categories = [];
      for (var _i = 0; _i < arguments.length; _i++) {
        categories[_i] = arguments[_i];
      }
      this._set(true, categories);
    };
    Trace.prototype.disable = function () {
      var categories = [];
      for (var _i = 0; _i < arguments.length; _i++) {
        categories[_i] = arguments[_i];
      }
      this._set(false, categories);
    };
    /**
     * Retrieves the enabled stateus of a [[Category]]
     *
     * ```js
     * trace.enabled("VIEWCONFIG"); // true or false
     * ```
     *
     * @returns boolean true if the category is enabled
     */
    Trace.prototype.enabled = function (category) {
      return !!this._enabled[normalizedCat(category)];
    };
    /** @internalapi called by ui-router code */
    Trace.prototype.traceTransitionStart = function (trans) {
      if (!this.enabled(exports.Category.TRANSITION))
        return;
      console.log(transLbl(trans) + ": Started  -> " + stringify(trans));
    };
    /** @internalapi called by ui-router code */
    Trace.prototype.traceTransitionIgnored = function (trans) {
      if (!this.enabled(exports.Category.TRANSITION))
        return;
      console.log(transLbl(trans) + ": Ignored  <> " + stringify(trans));
    };
    /** @internalapi called by ui-router code */
    Trace.prototype.traceHookInvocation = function (step, trans, options) {
      if (!this.enabled(exports.Category.HOOK))
        return;
      var event = parse("traceData.hookType")(options) || "internal", context = parse("traceData.context.state.name")(options) || parse("traceData.context")(options) || "unknown", name = functionToString(step.registeredHook.callback);
      console.log(transLbl(trans) + ":   Hook -> " + event + " context: " + context + ", " + maxLength(200, name));
    };
    /** @internalapi called by ui-router code */
    Trace.prototype.traceHookResult = function (hookResult, trans, transitionOptions) {
      if (!this.enabled(exports.Category.HOOK))
        return;
      console.log(transLbl(trans) + ":   <- Hook returned: " + maxLength(200, stringify(hookResult)));
    };
    /** @internalapi called by ui-router code */
    Trace.prototype.traceResolvePath = function (path, when, trans) {
      if (!this.enabled(exports.Category.RESOLVE))
        return;
      console.log(transLbl(trans) + ":         Resolving " + path + " (" + when + ")");
    };
    /** @internalapi called by ui-router code */
    Trace.prototype.traceResolvableResolved = function (resolvable, trans) {
      if (!this.enabled(exports.Category.RESOLVE))
        return;
      console.log(transLbl(trans) + ":               <- Resolved  " + resolvable + " to: " + maxLength(200, stringify(resolvable.data)));
    };
    /** @internalapi called by ui-router code */
    Trace.prototype.traceError = function (reason, trans) {
      if (!this.enabled(exports.Category.TRANSITION))
        return;
      console.log(transLbl(trans) + ": <- Rejected " + stringify(trans) + ", reason: " + reason);
    };
    /** @internalapi called by ui-router code */
    Trace.prototype.traceSuccess = function (finalState, trans) {
      if (!this.enabled(exports.Category.TRANSITION))
        return;
      console.log(transLbl(trans) + ": <- Success  " + stringify(trans) + ", final state: " + finalState.name);
    };
    /** @internalapi called by ui-router code */
    Trace.prototype.traceUIViewEvent = function (event, viewData, extra) {
      if (extra === void 0) { extra = ""; }
      if (!this.enabled(exports.Category.UIVIEW))
        return;
      console.log("ui-view: " + padString(30, event) + " " + uiViewString(viewData) + extra);
    };
    /** @internalapi called by ui-router code */
    Trace.prototype.traceUIViewConfigUpdated = function (viewData, context) {
      if (!this.enabled(exports.Category.UIVIEW))
        return;
      this.traceUIViewEvent("Updating", viewData, " with ViewConfig from context='" + context + "'");
    };
    /** @internalapi called by ui-router code */
    Trace.prototype.traceUIViewFill = function (viewData, html) {
      if (!this.enabled(exports.Category.UIVIEW))
        return;
      this.traceUIViewEvent("Fill", viewData, " with: " + maxLength(200, html));
    };
    /** @internalapi called by ui-router code */
    Trace.prototype.traceViewSync = function (pairs) {
      if (!this.enabled(exports.Category.VIEWCONFIG))
        return;
      var mapping = pairs.map(function (_a) {
        var uiViewData = _a[0], config = _a[1];
        var uiView = uiViewData.$type + ":" + uiViewData.fqn;
        var view = config && config.viewDecl.$context.name + ": " + config.viewDecl.$name + " (" + config.viewDecl.$type + ")";
        return { 'ui-view fqn': uiView, 'state: view name': view };
      }).sort(function (a, b) { return a['ui-view fqn'].localeCompare(b['ui-view fqn']); });
      consoletable(mapping);
    };
    /** @internalapi called by ui-router code */
    Trace.prototype.traceViewServiceEvent = function (event, viewConfig) {
      if (!this.enabled(exports.Category.VIEWCONFIG))
        return;
      console.log("VIEWCONFIG: " + event + " " + viewConfigString(viewConfig));
    };
    /** @internalapi called by ui-router code */
    Trace.prototype.traceViewServiceUIViewEvent = function (event, viewData) {
      if (!this.enabled(exports.Category.VIEWCONFIG))
        return;
      console.log("VIEWCONFIG: " + event + " " + uiViewString(viewData));
    };
    return Trace;
  }());
  /**
   * The [[Trace]] singleton
   *
   * #### Example:
   * ```js
   * import {trace} from "angular-ui-router";
   * trace.enable(1, 5);
   * ```
   */
  var trace = new Trace();

  (function (TransitionHookPhase) {
    TransitionHookPhase[TransitionHookPhase["CREATE"] = 0] = "CREATE";
    TransitionHookPhase[TransitionHookPhase["BEFORE"] = 1] = "BEFORE";
    TransitionHookPhase[TransitionHookPhase["RUN"] = 2] = "RUN";
    TransitionHookPhase[TransitionHookPhase["SUCCESS"] = 3] = "SUCCESS";
    TransitionHookPhase[TransitionHookPhase["ERROR"] = 4] = "ERROR";
  })(exports.TransitionHookPhase || (exports.TransitionHookPhase = {}));

  (function (TransitionHookScope) {
    TransitionHookScope[TransitionHookScope["TRANSITION"] = 0] = "TRANSITION";
    TransitionHookScope[TransitionHookScope["STATE"] = 1] = "STATE";
  })(exports.TransitionHookScope || (exports.TransitionHookScope = {}));

  /**
   * @coreapi
   * @module state
   */ /** for typedoc */
  /**
   * Encapsulate the target (destination) state/params/options of a [[Transition]].
   *
   * This class is frequently used to redirect a transition to a new destination.
   *
   * See:
   *
   * - [[HookResult]]
   * - [[TransitionHookFn]]
   * - [[TransitionService.onStart]]
   *
   * To create a `TargetState`, use [[StateService.target]].
   *
   * ---
   *
   * This class wraps:
   *
   * 1) an identifier for a state
   * 2) a set of parameters
   * 3) and transition options
   * 4) the registered state object (the [[StateDeclaration]])
   *
   * Many UI-Router APIs such as [[StateService.go]] take a [[StateOrName]] argument which can
   * either be a *state object* (a [[StateDeclaration]] or [[StateObject]]) or a *state name* (a string).
   * The `TargetState` class normalizes those options.
   *
   * A `TargetState` may be valid (the state being targeted exists in the registry)
   * or invalid (the state being targeted is not registered).
   */
  var TargetState = /** @class */ (function () {
    /**
     * The TargetState constructor
     *
     * Note: Do not construct a `TargetState` manually.
     * To create a `TargetState`, use the [[StateService.target]] factory method.
     *
     * @param _stateRegistry The StateRegistry to use to look up the _definition
     * @param _identifier An identifier for a state.
     *    Either a fully-qualified state name, or the object used to define the state.
     * @param _params Parameters for the target state
     * @param _options Transition options.
     *
     * @internalapi
     */
    function TargetState(_stateRegistry, _identifier, _params, _options) {
      this._stateRegistry = _stateRegistry;
      this._identifier = _identifier;
      this._identifier = _identifier;
      this._params = extend({}, _params || {});
      this._options = extend({}, _options || {});
      this._definition = _stateRegistry.matcher.find(_identifier, this._options.relative);
    }
    /** The name of the state this object targets */
    TargetState.prototype.name = function () {
      return this._definition && this._definition.name || this._identifier;
    };
    /** The identifier used when creating this TargetState */
    TargetState.prototype.identifier = function () {
      return this._identifier;
    };
    /** The target parameter values */
    TargetState.prototype.params = function () {
      return this._params;
    };
    /** The internal state object (if it was found) */
    TargetState.prototype.$state = function () {
      return this._definition;
    };
    /** The internal state declaration (if it was found) */
    TargetState.prototype.state = function () {
      return this._definition && this._definition.self;
    };
    /** The target options */
    TargetState.prototype.options = function () {
      return this._options;
    };
    /** True if the target state was found */
    TargetState.prototype.exists = function () {
      return !!(this._definition && this._definition.self);
    };
    /** True if the object is valid */
    TargetState.prototype.valid = function () {
      return !this.error();
    };
    /** If the object is invalid, returns the reason why */
    TargetState.prototype.error = function () {
      var base = this.options().relative;
      if (!this._definition && !!base) {
        var stateName = base.name ? base.name : base;
        return "Could not resolve '" + this.name() + "' from state '" + stateName + "'";
      }
      if (!this._definition)
        return "No such state '" + this.name() + "'";
      if (!this._definition.self)
        return "State '" + this.name() + "' has an invalid definition";
    };
    TargetState.prototype.toString = function () {
      return "'" + this.name() + "'" + stringify(this.params());
    };
    /**
     * Returns a copy of this TargetState which targets a different state.
     * The new TargetState has the same parameter values and transition options.
     *
     * @param state The new state that should be targeted
     */
    TargetState.prototype.withState = function (state) {
      return new TargetState(this._stateRegistry, state, this._params, this._options);
    };
    /**
     * Returns a copy of this TargetState, using the specified parameter values.
     *
     * @param params the new parameter values to use
     * @param replace When false (default) the new parameter values will be merged with the current values.
     *                When true the parameter values will be used instead of the current values.
     */
    TargetState.prototype.withParams = function (params, replace) {
      if (replace === void 0) { replace = false; }
      var newParams = replace ? params : extend({}, this._params, params);
      return new TargetState(this._stateRegistry, this._identifier, newParams, this._options);
    };
    /**
     * Returns a copy of this TargetState, using the specified Transition Options.
     *
     * @param options the new options to use
     * @param replace When false (default) the new options will be merged with the current options.
     *                When true the options will be used instead of the current options.
     */
    TargetState.prototype.withOptions = function (options, replace) {
      if (replace === void 0) { replace = false; }
      var newOpts = replace ? options : extend({}, this._options, options);
      return new TargetState(this._stateRegistry, this._identifier, this._params, newOpts);
    };
    /** Returns true if the object has a state property that might be a state or state name */
    TargetState.isDef = function (obj) {
      return obj && obj.state && (isString(obj.state) || isString(obj.state.name));
    };
    return TargetState;
  }());

  /**
   * @coreapi
   * @module transition
   */
  /** for typedoc */
  var defaultOptions = {
    current: noop$1,
    transition: null,
    traceData: {},
    bind: null,
  };
  /** @hidden */
  var TransitionHook = /** @class */ (function () {
    function TransitionHook(transition, stateContext, registeredHook, options) {
      var _this = this;
      this.transition = transition;
      this.stateContext = stateContext;
      this.registeredHook = registeredHook;
      this.options = options;
      this.isSuperseded = function () {
        return _this.type.hookPhase === exports.TransitionHookPhase.RUN && !_this.options.transition.isActive();
      };
      this.options = defaults(options, defaultOptions);
      this.type = registeredHook.eventType;
    }
    TransitionHook.prototype.logError = function (err) {
      this.transition.router.stateService.defaultErrorHandler()(err);
    };
    TransitionHook.prototype.invokeHook = function () {
      var _this = this;
      var hook = this.registeredHook;
      if (hook._deregistered)
        return;
      var notCurrent = this.getNotCurrentRejection();
      if (notCurrent)
        return notCurrent;
      var options = this.options;
      trace.traceHookInvocation(this, this.transition, options);
      var invokeCallback = function () {
        return hook.callback.call(options.bind, _this.transition, _this.stateContext);
      };
      var normalizeErr = function (err) {
        return Rejection.normalize(err).toPromise();
      };
      var handleError = function (err) {
        return hook.eventType.getErrorHandler(_this)(err);
      };
      var handleResult = function (result) {
        return hook.eventType.getResultHandler(_this)(result);
      };
      try {
        var result = invokeCallback();
        if (!this.type.synchronous && isPromise(result)) {
          return result.catch(normalizeErr)
            .then(handleResult, handleError);
        }
        else {
          return handleResult(result);
        }
      }
      catch (err) {
        // If callback throws (synchronously)
        return handleError(Rejection.normalize(err));
      }
      finally {
        if (hook.invokeLimit && ++hook.invokeCount >= hook.invokeLimit) {
          hook.deregister();
        }
      }
    };
    /**
     * This method handles the return value of a Transition Hook.
     *
     * A hook can return false (cancel), a TargetState (redirect),
     * or a promise (which may later resolve to false or a redirect)
     *
     * This also handles "transition superseded" -- when a new transition
     * was started while the hook was still running
     */
    TransitionHook.prototype.handleHookResult = function (result) {
      var _this = this;
      var notCurrent = this.getNotCurrentRejection();
      if (notCurrent)
        return notCurrent;
      // Hook returned a promise
      if (isPromise(result)) {
        // Wait for the promise, then reprocess with the resulting value
        return result.then(function (val$$1) { return _this.handleHookResult(val$$1); });
      }
      trace.traceHookResult(result, this.transition, this.options);
      // Hook returned false
      if (result === false) {
        // Abort this Transition
        return Rejection.aborted("Hook aborted transition").toPromise();
      }
      var isTargetState = is(TargetState);
      // hook returned a TargetState
      if (isTargetState(result)) {
        // Halt the current Transition and redirect (a new Transition) to the TargetState.
        return Rejection.redirected(result).toPromise();
      }
    };
    /**
     * Return a Rejection promise if the transition is no longer current due
     * to a stopped router (disposed), or a new transition has started and superseded this one.
     */
    TransitionHook.prototype.getNotCurrentRejection = function () {
      var router = this.transition.router;
      // The router is stopped
      if (router._disposed) {
        return Rejection.aborted("UIRouter instance #" + router.$id + " has been stopped (disposed)").toPromise();
      }
      if (this.transition._aborted) {
        return Rejection.aborted().toPromise();
      }
      // This transition is no longer current.
      // Another transition started while this hook was still running.
      if (this.isSuperseded()) {
        // Abort this transition
        return Rejection.superseded(this.options.current()).toPromise();
      }
    };
    TransitionHook.prototype.toString = function () {
      var _a = this, options = _a.options, registeredHook = _a.registeredHook;
      var event = parse("traceData.hookType")(options) || "internal", context = parse("traceData.context.state.name")(options) || parse("traceData.context")(options) || "unknown", name = fnToString(registeredHook.callback);
      return event + " context: " + context + ", " + maxLength(200, name);
    };
    /**
     * Chains together an array of TransitionHooks.
     *
     * Given a list of [[TransitionHook]] objects, chains them together.
     * Each hook is invoked after the previous one completes.
     *
     * #### Example:
     * ```js
     * var hooks: TransitionHook[] = getHooks();
     * let promise: Promise<any> = TransitionHook.chain(hooks);
     *
     * promise.then(handleSuccess, handleError);
     * ```
     *
     * @param hooks the list of hooks to chain together
     * @param waitFor if provided, the chain is `.then()`'ed off this promise
     * @returns a `Promise` for sequentially invoking the hooks (in order)
     */
    TransitionHook.chain = function (hooks, waitFor) {
      // Chain the next hook off the previous
      var createHookChainR = function (prev, nextHook) {
        return prev.then(function () { return nextHook.invokeHook(); });
      };
      return hooks.reduce(createHookChainR, waitFor || services.$q.when());
    };
    /**
     * Invokes all the provided TransitionHooks, in order.
     * Each hook's return value is checked.
     * If any hook returns a promise, then the rest of the hooks are chained off that promise, and the promise is returned.
     * If no hook returns a promise, then all hooks are processed synchronously.
     *
     * @param hooks the list of TransitionHooks to invoke
     * @param doneCallback a callback that is invoked after all the hooks have successfully completed
     *
     * @returns a promise for the async result, or the result of the callback
     */
    TransitionHook.invokeHooks = function (hooks, doneCallback) {
      for (var idx = 0; idx < hooks.length; idx++) {
        var hookResult = hooks[idx].invokeHook();
        if (isPromise(hookResult)) {
          var remainingHooks = hooks.slice(idx + 1);
          return TransitionHook.chain(remainingHooks, hookResult)
            .then(doneCallback);
        }
      }
      return doneCallback();
    };
    /**
     * Run all TransitionHooks, ignoring their return value.
     */
    TransitionHook.runAllHooks = function (hooks) {
      hooks.forEach(function (hook) { return hook.invokeHook(); });
    };
    /**
     * These GetResultHandler(s) are used by [[invokeHook]] below
     * Each HookType chooses a GetResultHandler (See: [[TransitionService._defineCoreEvents]])
     */
    TransitionHook.HANDLE_RESULT = function (hook) { return function (result) {
      return hook.handleHookResult(result);
    }; };
    /**
     * If the result is a promise rejection, log it.
     * Otherwise, ignore the result.
     */
    TransitionHook.LOG_REJECTED_RESULT = function (hook) { return function (result) {
      isPromise(result) && result.catch(function (err) {
        return hook.logError(Rejection.normalize(err));
      });
      return undefined;
    }; };
    /**
     * These GetErrorHandler(s) are used by [[invokeHook]] below
     * Each HookType chooses a GetErrorHandler (See: [[TransitionService._defineCoreEvents]])
     */
    TransitionHook.LOG_ERROR = function (hook) { return function (error) {
      return hook.logError(error);
    }; };
    TransitionHook.REJECT_ERROR = function (hook) { return function (error) {
      return silentRejection(error);
    }; };
    TransitionHook.THROW_ERROR = function (hook) { return function (error) {
      throw error;
    }; };
    return TransitionHook;
  }());

  /**
   * @coreapi
   * @module transition
   */ /** for typedoc */
  /**
   * Determines if the given state matches the matchCriteria
   *
   * @hidden
   *
   * @param state a State Object to test against
   * @param criterion
   * - If a string, matchState uses the string as a glob-matcher against the state name
   * - If an array (of strings), matchState uses each string in the array as a glob-matchers against the state name
   *   and returns a positive match if any of the globs match.
   * - If a function, matchState calls the function with the state and returns true if the function's result is truthy.
   * @returns {boolean}
   */
  function matchState(state, criterion) {
    var toMatch = isString(criterion) ? [criterion] : criterion;
    function matchGlobs(_state) {
      var globStrings = toMatch;
      for (var i = 0; i < globStrings.length; i++) {
        var glob = new Glob(globStrings[i]);
        if ((glob && glob.matches(_state.name)) || (!glob && globStrings[i] === _state.name)) {
          return true;
        }
      }
      return false;
    }
    var matchFn = (isFunction(toMatch) ? toMatch : matchGlobs);
    return !!matchFn(state);
  }
  /**
   * @internalapi
   * The registration data for a registered transition hook
   */
  var RegisteredHook = /** @class */ (function () {
    function RegisteredHook(tranSvc, eventType, callback, matchCriteria, removeHookFromRegistry, options) {
      if (options === void 0) { options = {}; }
      this.tranSvc = tranSvc;
      this.eventType = eventType;
      this.callback = callback;
      this.matchCriteria = matchCriteria;
      this.removeHookFromRegistry = removeHookFromRegistry;
      this.invokeCount = 0;
      this._deregistered = false;
      this.priority = options.priority || 0;
      this.bind = options.bind || null;
      this.invokeLimit = options.invokeLimit;
    }
    /**
     * Gets the matching [[PathNode]]s
     *
     * Given an array of [[PathNode]]s, and a [[HookMatchCriterion]], returns an array containing
     * the [[PathNode]]s that the criteria matches, or `null` if there were no matching nodes.
     *
     * Returning `null` is significant to distinguish between the default
     * "match-all criterion value" of `true` compared to a `() => true` function,
     * when the nodes is an empty array.
     *
     * This is useful to allow a transition match criteria of `entering: true`
     * to still match a transition, even when `entering === []`.  Contrast that
     * with `entering: (state) => true` which only matches when a state is actually
     * being entered.
     */
    RegisteredHook.prototype._matchingNodes = function (nodes, criterion) {
      if (criterion === true)
        return nodes;
      var matching = nodes.filter(function (node) { return matchState(node.state, criterion); });
      return matching.length ? matching : null;
    };
    /**
     * Gets the default match criteria (all `true`)
     *
     * Returns an object which has all the criteria match paths as keys and `true` as values, i.e.:
     *
     * ```js
     * {
     *   to: true,
     *   from: true,
     *   entering: true,
     *   exiting: true,
     *   retained: true,
     * }
     */
    RegisteredHook.prototype._getDefaultMatchCriteria = function () {
      return map(this.tranSvc._pluginapi._getPathTypes(), function () { return true; });
    };
    /**
     * Gets matching nodes as [[IMatchingNodes]]
     *
     * Create a IMatchingNodes object from the TransitionHookTypes that is roughly equivalent to:
     *
     * ```js
     * let matches: IMatchingNodes = {
     *   to:       _matchingNodes([tail(treeChanges.to)],   mc.to),
     *   from:     _matchingNodes([tail(treeChanges.from)], mc.from),
     *   exiting:  _matchingNodes(treeChanges.exiting,      mc.exiting),
     *   retained: _matchingNodes(treeChanges.retained,     mc.retained),
     *   entering: _matchingNodes(treeChanges.entering,     mc.entering),
     * };
     * ```
     */
    RegisteredHook.prototype._getMatchingNodes = function (treeChanges) {
      var _this = this;
      var criteria = extend(this._getDefaultMatchCriteria(), this.matchCriteria);
      var paths = values(this.tranSvc._pluginapi._getPathTypes());
      return paths.reduce(function (mn, pathtype) {
        // STATE scope criteria matches against every node in the path.
        // TRANSITION scope criteria matches against only the last node in the path
        var isStateHook = pathtype.scope === exports.TransitionHookScope.STATE;
        var path = treeChanges[pathtype.name] || [];
        var nodes = isStateHook ? path : [tail(path)];
        mn[pathtype.name] = _this._matchingNodes(nodes, criteria[pathtype.name]);
        return mn;
      }, {});
    };
    /**
     * Determines if this hook's [[matchCriteria]] match the given [[TreeChanges]]
     *
     * @returns an IMatchingNodes object, or null. If an IMatchingNodes object is returned, its values
     * are the matching [[PathNode]]s for each [[HookMatchCriterion]] (to, from, exiting, retained, entering)
     */
    RegisteredHook.prototype.matches = function (treeChanges) {
      var matches = this._getMatchingNodes(treeChanges);
      // Check if all the criteria matched the TreeChanges object
      var allMatched = values(matches).every(identity);
      return allMatched ? matches : null;
    };
    RegisteredHook.prototype.deregister = function () {
      this.removeHookFromRegistry(this);
      this._deregistered = true;
    };
    return RegisteredHook;
  }());
  /** @hidden Return a registration function of the requested type. */
  function makeEvent(registry, transitionService, eventType) {
    // Create the object which holds the registered transition hooks.
    var _registeredHooks = registry._registeredHooks = (registry._registeredHooks || {});
    var hooks = _registeredHooks[eventType.name] = [];
    var removeHookFn = removeFrom(hooks);
    // Create hook registration function on the IHookRegistry for the event
    registry[eventType.name] = hookRegistrationFn;
    function hookRegistrationFn(matchObject, callback, options) {
      if (options === void 0) { options = {}; }
      var registeredHook = new RegisteredHook(transitionService, eventType, callback, matchObject, removeHookFn, options);
      hooks.push(registeredHook);
      return registeredHook.deregister.bind(registeredHook);
    }
    return hookRegistrationFn;
  }

  /**
   * @coreapi
   * @module transition
   */ /** for typedoc */
  /**
   * This class returns applicable TransitionHooks for a specific Transition instance.
   *
   * Hooks ([[RegisteredHook]]) may be registered globally, e.g., $transitions.onEnter(...), or locally, e.g.
   * myTransition.onEnter(...).  The HookBuilder finds matching RegisteredHooks (where the match criteria is
   * determined by the type of hook)
   *
   * The HookBuilder also converts RegisteredHooks objects to TransitionHook objects, which are used to run a Transition.
   *
   * The HookBuilder constructor is given the $transitions service and a Transition instance.  Thus, a HookBuilder
   * instance may only be used for one specific Transition object. (side note: the _treeChanges accessor is private
   * in the Transition class, so we must also provide the Transition's _treeChanges)
   *
   */
  var HookBuilder = /** @class */ (function () {
    function HookBuilder(transition) {
      this.transition = transition;
    }
    HookBuilder.prototype.buildHooksForPhase = function (phase) {
      var _this = this;
      var $transitions = this.transition.router.transitionService;
      return $transitions._pluginapi._getEvents(phase)
        .map(function (type) { return _this.buildHooks(type); })
        .reduce(unnestR, [])
        .filter(identity);
    };
    /**
     * Returns an array of newly built TransitionHook objects.
     *
     * - Finds all RegisteredHooks registered for the given `hookType` which matched the transition's [[TreeChanges]].
     * - Finds [[PathNode]] (or `PathNode[]`) to use as the TransitionHook context(s)
     * - For each of the [[PathNode]]s, creates a TransitionHook
     *
     * @param hookType the type of the hook registration function, e.g., 'onEnter', 'onFinish'.
     */
    HookBuilder.prototype.buildHooks = function (hookType) {
      var transition = this.transition;
      var treeChanges = transition.treeChanges();
      // Find all the matching registered hooks for a given hook type
      var matchingHooks = this.getMatchingHooks(hookType, treeChanges);
      if (!matchingHooks)
        return [];
      var baseHookOptions = {
        transition: transition,
        current: transition.options().current
      };
      var makeTransitionHooks = function (hook) {
        // Fetch the Nodes that caused this hook to match.
        var matches = hook.matches(treeChanges);
        // Select the PathNode[] that will be used as TransitionHook context objects
        var matchingNodes = matches[hookType.criteriaMatchPath.name];
        // Return an array of HookTuples
        return matchingNodes.map(function (node) {
          var _options = extend({
            bind: hook.bind,
            traceData: { hookType: hookType.name, context: node }
          }, baseHookOptions);
          var state = hookType.criteriaMatchPath.scope === exports.TransitionHookScope.STATE ? node.state.self : null;
          var transitionHook = new TransitionHook(transition, state, hook, _options);
          return { hook: hook, node: node, transitionHook: transitionHook };
        });
      };
      return matchingHooks.map(makeTransitionHooks)
        .reduce(unnestR, [])
        .sort(tupleSort(hookType.reverseSort))
        .map(function (tuple) { return tuple.transitionHook; });
    };
    /**
     * Finds all RegisteredHooks from:
     * - The Transition object instance hook registry
     * - The TransitionService ($transitions) global hook registry
     *
     * which matched:
     * - the eventType
     * - the matchCriteria (to, from, exiting, retained, entering)
     *
     * @returns an array of matched [[RegisteredHook]]s
     */
    HookBuilder.prototype.getMatchingHooks = function (hookType, treeChanges) {
      var isCreate = hookType.hookPhase === exports.TransitionHookPhase.CREATE;
      // Instance and Global hook registries
      var $transitions = this.transition.router.transitionService;
      var registries = isCreate ? [$transitions] : [this.transition, $transitions];
      return registries.map(function (reg) { return reg.getHooks(hookType.name); }) // Get named hooks from registries
        .filter(assertPredicate(isArray, "broken event named: " + hookType.name)) // Sanity check
        .reduce(unnestR, []) // Un-nest RegisteredHook[][] to RegisteredHook[] array
        .filter(function (hook) { return hook.matches(treeChanges); }); // Only those satisfying matchCriteria
    };
    return HookBuilder;
  }());
  /**
   * A factory for a sort function for HookTuples.
   *
   * The sort function first compares the PathNode depth (how deep in the state tree a node is), then compares
   * the EventHook priority.
   *
   * @param reverseDepthSort a boolean, when true, reverses the sort order for the node depth
   * @returns a tuple sort function
   */
  function tupleSort(reverseDepthSort) {
    if (reverseDepthSort === void 0) { reverseDepthSort = false; }
    return function nodeDepthThenPriority(l, r) {
      var factor = reverseDepthSort ? -1 : 1;
      var depthDelta = (l.node.state.path.length - r.node.state.path.length) * factor;
      return depthDelta !== 0 ? depthDelta : r.hook.priority - l.hook.priority;
    };
  }

  /**
   * @coreapi
   * @module params
   */
  /** */
  /**
   * An internal class which implements [[ParamTypeDefinition]].
   *
   * A [[ParamTypeDefinition]] is a plain javascript object used to register custom parameter types.
   * When a param type definition is registered, an instance of this class is created internally.
   *
   * This class has naive implementations for all the [[ParamTypeDefinition]] methods.
   *
   * Used by [[UrlMatcher]] when matching or formatting URLs, or comparing and validating parameter values.
   *
   * #### Example:
   * ```js
   * var paramTypeDef = {
 *   decode: function(val) { return parseInt(val, 10); },
 *   encode: function(val) { return val && val.toString(); },
 *   equals: function(a, b) { return this.is(a) && a === b; },
 *   is: function(val) { return angular.isNumber(val) && isFinite(val) && val % 1 === 0; },
 *   pattern: /\d+/
 * }
   *
   * var paramType = new ParamType(paramTypeDef);
   * ```
   * @internalapi
   */
  var ParamType = /** @class */ (function () {
    /**
     * @param def  A configuration object which contains the custom type definition.  The object's
     *        properties will override the default methods and/or pattern in `ParamType`'s public interface.
     * @returns a new ParamType object
     */
    function ParamType(def) {
      /** @inheritdoc */
      this.pattern = /.*/;
      /** @inheritdoc */
      this.inherit = true;
      extend(this, def);
    }
    // consider these four methods to be "abstract methods" that should be overridden
    /** @inheritdoc */
    ParamType.prototype.is = function (val, key) { return true; };
    /** @inheritdoc */
    ParamType.prototype.encode = function (val, key) { return val; };
    /** @inheritdoc */
    ParamType.prototype.decode = function (val, key) { return val; };
    /** @inheritdoc */
    ParamType.prototype.equals = function (a, b) { return a == b; };
    ParamType.prototype.$subPattern = function () {
      var sub = this.pattern.toString();
      return sub.substr(1, sub.length - 2);
    };
    ParamType.prototype.toString = function () {
      return "{ParamType:" + this.name + "}";
    };
    /** Given an encoded string, or a decoded object, returns a decoded object */
    ParamType.prototype.$normalize = function (val) {
      return this.is(val) ? val : this.decode(val);
    };
    /**
     * Wraps an existing custom ParamType as an array of ParamType, depending on 'mode'.
     * e.g.:
     * - urlmatcher pattern "/path?{queryParam[]:int}"
     * - url: "/path?queryParam=1&queryParam=2
     * - $stateParams.queryParam will be [1, 2]
     * if `mode` is "auto", then
     * - url: "/path?queryParam=1 will create $stateParams.queryParam: 1
     * - url: "/path?queryParam=1&queryParam=2 will create $stateParams.queryParam: [1, 2]
     */
    ParamType.prototype.$asArray = function (mode, isSearch) {
      if (!mode)
        return this;
      if (mode === "auto" && !isSearch)
        throw new Error("'auto' array mode is for query parameters only");
      return new ArrayType(this, mode);
    };
    return ParamType;
  }());
  /**
   * Wraps up a `ParamType` object to handle array values.
   * @internalapi
   */
  function ArrayType(type, mode) {
    var _this = this;
    // Wrap non-array value as array
    function arrayWrap(val) {
      return isArray(val) ? val : (isDefined(val) ? [val] : []);
    }
    // Unwrap array value for "auto" mode. Return undefined for empty array.
    function arrayUnwrap(val) {
      switch (val.length) {
        case 0: return undefined;
        case 1: return mode === "auto" ? val[0] : val;
        default: return val;
      }
    }
    // Wraps type (.is/.encode/.decode) functions to operate on each value of an array
    function arrayHandler(callback, allTruthyMode) {
      return function handleArray(val) {
        if (isArray(val) && val.length === 0)
          return val;
        var arr = arrayWrap(val);
        var result = map(arr, callback);
        return (allTruthyMode === true) ? filter(result, function (x) { return !x; }).length === 0 : arrayUnwrap(result);
      };
    }
    // Wraps type (.equals) functions to operate on each value of an array
    function arrayEqualsHandler(callback) {
      return function handleArray(val1, val2) {
        var left = arrayWrap(val1), right = arrayWrap(val2);
        if (left.length !== right.length)
          return false;
        for (var i = 0; i < left.length; i++) {
          if (!callback(left[i], right[i]))
            return false;
        }
        return true;
      };
    }
    ['encode', 'decode', 'equals', '$normalize'].forEach(function (name) {
      var paramTypeFn = type[name].bind(type);
      var wrapperFn = name === 'equals' ? arrayEqualsHandler : arrayHandler;
      _this[name] = wrapperFn(paramTypeFn);
    });
    extend(this, {
      dynamic: type.dynamic,
      name: type.name,
      pattern: type.pattern,
      inherit: type.inherit,
      is: arrayHandler(type.is.bind(type), true),
      $arrayMode: mode
    });
  }

  /**
   * @coreapi
   * @module params
   */ /** for typedoc */
  /** @hidden */ var hasOwn = Object.prototype.hasOwnProperty;
  /** @hidden */ var isShorthand = function (cfg) {
    return ["value", "type", "squash", "array", "dynamic"].filter(hasOwn.bind(cfg || {})).length === 0;
  };
  /** @internalapi */

  (function (DefType) {
    DefType[DefType["PATH"] = 0] = "PATH";
    DefType[DefType["SEARCH"] = 1] = "SEARCH";
    DefType[DefType["CONFIG"] = 2] = "CONFIG";
  })(exports.DefType || (exports.DefType = {}));
  /** @hidden */
  function unwrapShorthand(cfg) {
    cfg = isShorthand(cfg) && { value: cfg } || cfg;
    getStaticDefaultValue['__cacheable'] = true;
    function getStaticDefaultValue() {
      return cfg.value;
    }
    return extend(cfg, {
      $$fn: isInjectable(cfg.value) ? cfg.value : getStaticDefaultValue,
    });
  }
  /** @hidden */
  function getType(cfg, urlType, location, id, paramTypes) {
    if (cfg.type && urlType && urlType.name !== 'string')
      throw new Error("Param '" + id + "' has two type configurations.");
    if (cfg.type && urlType && urlType.name === 'string' && paramTypes.type(cfg.type))
      return paramTypes.type(cfg.type);
    if (urlType)
      return urlType;
    if (!cfg.type) {
      var type = location === exports.DefType.CONFIG ? "any" :
        location === exports.DefType.PATH ? "path" :
          location === exports.DefType.SEARCH ? "query" : "string";
      return paramTypes.type(type);
    }
    return cfg.type instanceof ParamType ? cfg.type : paramTypes.type(cfg.type);
  }
  /**
   * @internalapi
   * returns false, true, or the squash value to indicate the "default parameter url squash policy".
   */
  function getSquashPolicy(config, isOptional, defaultPolicy) {
    var squash = config.squash;
    if (!isOptional || squash === false)
      return false;
    if (!isDefined(squash) || squash == null)
      return defaultPolicy;
    if (squash === true || isString(squash))
      return squash;
    throw new Error("Invalid squash policy: '" + squash + "'. Valid policies: false, true, or arbitrary string");
  }
  /** @internalapi */
  function getReplace(config, arrayMode, isOptional, squash) {
    var replace, configuredKeys, defaultPolicy = [
      { from: "", to: (isOptional || arrayMode ? undefined : "") },
      { from: null, to: (isOptional || arrayMode ? undefined : "") },
    ];
    replace = isArray(config.replace) ? config.replace : [];
    if (isString(squash))
      replace.push({ from: squash, to: undefined });
    configuredKeys = map(replace, prop("from"));
    return filter(defaultPolicy, function (item) { return configuredKeys.indexOf(item.from) === -1; }).concat(replace);
  }
  /** @internalapi */
  var Param = /** @class */ (function () {
    function Param(id, type, config, location, urlMatcherFactory) {
      config = unwrapShorthand(config);
      type = getType(config, type, location, id, urlMatcherFactory.paramTypes);
      var arrayMode = getArrayMode();
      type = arrayMode ? type.$asArray(arrayMode, location === exports.DefType.SEARCH) : type;
      var isOptional = config.value !== undefined || location === exports.DefType.SEARCH;
      var dynamic = isDefined(config.dynamic) ? !!config.dynamic : !!type.dynamic;
      var raw = isDefined(config.raw) ? !!config.raw : !!type.raw;
      var squash = getSquashPolicy(config, isOptional, urlMatcherFactory.defaultSquashPolicy());
      var replace = getReplace(config, arrayMode, isOptional, squash);
      var inherit$$1 = isDefined(config.inherit) ? !!config.inherit : !!type.inherit;
      // array config: param name (param[]) overrides default settings.  explicit config overrides param name.
      function getArrayMode() {
        var arrayDefaults = { array: (location === exports.DefType.SEARCH ? "auto" : false) };
        var arrayParamNomenclature = id.match(/\[\]$/) ? { array: true } : {};
        return extend(arrayDefaults, arrayParamNomenclature, config).array;
      }
      extend(this, { id: id, type: type, location: location, isOptional: isOptional, dynamic: dynamic, raw: raw, squash: squash, replace: replace, inherit: inherit$$1, array: arrayMode, config: config });
    }
    Param.prototype.isDefaultValue = function (value) {
      return this.isOptional && this.type.equals(this.value(), value);
    };
    /**
     * [Internal] Gets the decoded representation of a value if the value is defined, otherwise, returns the
     * default value, which may be the result of an injectable function.
     */
    Param.prototype.value = function (value) {
      var _this = this;
      /**
       * [Internal] Get the default value of a parameter, which may be an injectable function.
       */
      var getDefaultValue = function () {
        if (_this._defaultValueCache)
          return _this._defaultValueCache.defaultValue;
        if (!services.$injector)
          throw new Error("Injectable functions cannot be called at configuration time");
        var defaultValue = services.$injector.invoke(_this.config.$$fn);
        if (defaultValue !== null && defaultValue !== undefined && !_this.type.is(defaultValue))
          throw new Error("Default value (" + defaultValue + ") for parameter '" + _this.id + "' is not an instance of ParamType (" + _this.type.name + ")");
        if (_this.config.$$fn['__cacheable']) {
          _this._defaultValueCache = { defaultValue: defaultValue };
        }
        return defaultValue;
      };
      var replaceSpecialValues = function (val$$1) {
        for (var _i = 0, _a = _this.replace; _i < _a.length; _i++) {
          var tuple = _a[_i];
          if (tuple.from === val$$1)
            return tuple.to;
        }
        return val$$1;
      };
      value = replaceSpecialValues(value);
      return isUndefined(value) ? getDefaultValue() : this.type.$normalize(value);
    };
    Param.prototype.isSearch = function () {
      return this.location === exports.DefType.SEARCH;
    };
    Param.prototype.validates = function (value) {
      // There was no parameter value, but the param is optional
      if ((isUndefined(value) || value === null) && this.isOptional)
        return true;
      // The value was not of the correct ParamType, and could not be decoded to the correct ParamType
      var normalized = this.type.$normalize(value);
      if (!this.type.is(normalized))
        return false;
      // The value was of the correct type, but when encoded, did not match the ParamType's regexp
      var encoded = this.type.encode(normalized);
      return !(isString(encoded) && !this.type.pattern.exec(encoded));
    };
    Param.prototype.toString = function () {
      return "{Param:" + this.id + " " + this.type + " squash: '" + this.squash + "' optional: " + this.isOptional + "}";
    };
    Param.values = function (params, values$$1) {
      if (values$$1 === void 0) { values$$1 = {}; }
      var paramValues = {};
      for (var _i = 0, params_1 = params; _i < params_1.length; _i++) {
        var param = params_1[_i];
        paramValues[param.id] = param.value(values$$1[param.id]);
      }
      return paramValues;
    };
    /**
     * Finds [[Param]] objects which have different param values
     *
     * Filters a list of [[Param]] objects to only those whose parameter values differ in two param value objects
     *
     * @param params: The list of Param objects to filter
     * @param values1: The first set of parameter values
     * @param values2: the second set of parameter values
     *
     * @returns any Param objects whose values were different between values1 and values2
     */
    Param.changed = function (params, values1, values2) {
      if (values1 === void 0) { values1 = {}; }
      if (values2 === void 0) { values2 = {}; }
      return params.filter(function (param) { return !param.type.equals(values1[param.id], values2[param.id]); });
    };
    /**
     * Checks if two param value objects are equal (for a set of [[Param]] objects)
     *
     * @param params The list of [[Param]] objects to check
     * @param values1 The first set of param values
     * @param values2 The second set of param values
     *
     * @returns true if the param values in values1 and values2 are equal
     */
    Param.equals = function (params, values1, values2) {
      if (values1 === void 0) { values1 = {}; }
      if (values2 === void 0) { values2 = {}; }
      return Param.changed(params, values1, values2).length === 0;
    };
    /** Returns true if a the parameter values are valid, according to the Param definitions */
    Param.validates = function (params, values$$1) {
      if (values$$1 === void 0) { values$$1 = {}; }
      return params.map(function (param) { return param.validates(values$$1[param.id]); }).reduce(allTrueR, true);
    };
    return Param;
  }());

  /** @module path */ /** for typedoc */
  /**
   * @internalapi
   *
   * A node in a [[TreeChanges]] path
   *
   * For a [[TreeChanges]] path, this class holds the stateful information for a single node in the path.
   * Each PathNode corresponds to a state being entered, exited, or retained.
   * The stateful information includes parameter values and resolve data.
   */
  var PathNode = /** @class */ (function () {
    function PathNode(stateOrNode) {
      if (stateOrNode instanceof PathNode) {
        var node = stateOrNode;
        this.state = node.state;
        this.paramSchema = node.paramSchema.slice();
        this.paramValues = extend({}, node.paramValues);
        this.resolvables = node.resolvables.slice();
        this.views = node.views && node.views.slice();
      }
      else {
        var state = stateOrNode;
        this.state = state;
        this.paramSchema = state.parameters({ inherit: false });
        this.paramValues = {};
        this.resolvables = state.resolvables.map(function (res) { return res.clone(); });
      }
    }
    /** Sets [[paramValues]] for the node, from the values of an object hash */
    PathNode.prototype.applyRawParams = function (params) {
      var getParamVal = function (paramDef) { return [paramDef.id, paramDef.value(params[paramDef.id])]; };
      this.paramValues = this.paramSchema.reduce(function (memo, pDef) { return applyPairs(memo, getParamVal(pDef)); }, {});
      return this;
    };
    /** Gets a specific [[Param]] metadata that belongs to the node */
    PathNode.prototype.parameter = function (name) {
      return find(this.paramSchema, propEq("id", name));
    };
    /**
     * @returns true if the state and parameter values for another PathNode are
     * equal to the state and param values for this PathNode
     */
    PathNode.prototype.equals = function (node, paramsFn) {
      var diff = this.diff(node, paramsFn);
      return diff && diff.length === 0;
    };
    /**
     * Finds Params with different parameter values on another PathNode.
     *
     * Given another node (of the same state), finds the parameter values which differ.
     * Returns the [[Param]] (schema objects) whose parameter values differ.
     *
     * Given another node for a different state, returns `false`
     *
     * @param node The node to compare to
     * @param paramsFn A function that returns which parameters should be compared.
     * @returns The [[Param]]s which differ, or null if the two nodes are for different states
     */
    PathNode.prototype.diff = function (node, paramsFn) {
      if (this.state !== node.state)
        return false;
      var params = paramsFn ? paramsFn(this) : this.paramSchema;
      return Param.changed(params, this.paramValues, node.paramValues);
    };
    /** Returns a clone of the PathNode */
    PathNode.clone = function (node) {
      return new PathNode(node);
    };
    return PathNode;
  }());

  /** @module path */ /** for typedoc */
  /**
   * This class contains functions which convert TargetStates, Nodes and paths from one type to another.
   */
  var PathUtils = /** @class */ (function () {
    function PathUtils() {
    }
    /** Given a PathNode[], create an TargetState */
    PathUtils.makeTargetState = function (registry, path) {
      var state = tail(path).state;
      return new TargetState(registry, state, path.map(prop("paramValues")).reduce(mergeR, {}), {});
    };
    PathUtils.buildPath = function (targetState) {
      var toParams = targetState.params();
      return targetState.$state().path.map(function (state) { return new PathNode(state).applyRawParams(toParams); });
    };
    /** Given a fromPath: PathNode[] and a TargetState, builds a toPath: PathNode[] */
    PathUtils.buildToPath = function (fromPath, targetState) {
      var toPath = PathUtils.buildPath(targetState);
      if (targetState.options().inherit) {
        return PathUtils.inheritParams(fromPath, toPath, Object.keys(targetState.params()));
      }
      return toPath;
    };
    /**
     * Creates ViewConfig objects and adds to nodes.
     *
     * On each [[PathNode]], creates ViewConfig objects from the views: property of the node's state
     */
    PathUtils.applyViewConfigs = function ($view, path, states) {
      // Only apply the viewConfigs to the nodes for the given states
      path.filter(function (node) { return inArray(states, node.state); }).forEach(function (node) {
        var viewDecls = values(node.state.views || {});
        var subPath = PathUtils.subPath(path, function (n) { return n === node; });
        var viewConfigs = viewDecls.map(function (view) { return $view.createViewConfig(subPath, view); });
        node.views = viewConfigs.reduce(unnestR, []);
      });
    };
    /**
     * Given a fromPath and a toPath, returns a new to path which inherits parameters from the fromPath
     *
     * For a parameter in a node to be inherited from the from path:
     * - The toPath's node must have a matching node in the fromPath (by state).
     * - The parameter name must not be found in the toKeys parameter array.
     *
     * Note: the keys provided in toKeys are intended to be those param keys explicitly specified by some
     * caller, for instance, $state.transitionTo(..., toParams).  If a key was found in toParams,
     * it is not inherited from the fromPath.
     */
    PathUtils.inheritParams = function (fromPath, toPath, toKeys) {
      if (toKeys === void 0) { toKeys = []; }
      function nodeParamVals(path, state) {
        var node = find(path, propEq('state', state));
        return extend({}, node && node.paramValues);
      }
      var noInherit = fromPath.map(function (node) { return node.paramSchema; })
        .reduce(unnestR, [])
        .filter(function (param) { return !param.inherit; })
        .map(prop('id'));
      /**
       * Given an [[PathNode]] "toNode", return a new [[PathNode]] with param values inherited from the
       * matching node in fromPath.  Only inherit keys that aren't found in "toKeys" from the node in "fromPath""
       */
      function makeInheritedParamsNode(toNode) {
        // All param values for the node (may include default key/vals, when key was not found in toParams)
        var toParamVals = extend({}, toNode && toNode.paramValues);
        // limited to only those keys found in toParams
        var incomingParamVals = pick(toParamVals, toKeys);
        toParamVals = omit(toParamVals, toKeys);
        var fromParamVals = omit(nodeParamVals(fromPath, toNode.state) || {}, noInherit);
        // extend toParamVals with any fromParamVals, then override any of those those with incomingParamVals
        var ownParamVals = extend(toParamVals, fromParamVals, incomingParamVals);
        return new PathNode(toNode.state).applyRawParams(ownParamVals);
      }
      // The param keys specified by the incoming toParams
      return toPath.map(makeInheritedParamsNode);
    };
    /**
     * Computes the tree changes (entering, exiting) between a fromPath and toPath.
     */
    PathUtils.treeChanges = function (fromPath, toPath, reloadState) {
      var keep = 0, max = Math.min(fromPath.length, toPath.length);
      var nodesMatch = function (node1, node2) {
        return node1.equals(node2, PathUtils.nonDynamicParams);
      };
      while (keep < max && fromPath[keep].state !== reloadState && nodesMatch(fromPath[keep], toPath[keep])) {
        keep++;
      }
      /** Given a retained node, return a new node which uses the to node's param values */
      function applyToParams(retainedNode, idx) {
        var cloned = PathNode.clone(retainedNode);
        cloned.paramValues = toPath[idx].paramValues;
        return cloned;
      }
      var from, retained, exiting, entering, to;
      from = fromPath;
      retained = from.slice(0, keep);
      exiting = from.slice(keep);
      // Create a new retained path (with shallow copies of nodes) which have the params of the toPath mapped
      var retainedWithToParams = retained.map(applyToParams);
      entering = toPath.slice(keep);
      to = (retainedWithToParams).concat(entering);
      return { from: from, to: to, retained: retained, exiting: exiting, entering: entering };
    };
    /**
     * Returns a new path which is: the subpath of the first path which matches the second path.
     *
     * The new path starts from root and contains any nodes that match the nodes in the second path.
     * It stops before the first non-matching node.
     *
     * Nodes are compared using their state property and their parameter values.
     * If a `paramsFn` is provided, only the [[Param]] returned by the function will be considered when comparing nodes.
     *
     * @param pathA the first path
     * @param pathB the second path
     * @param paramsFn a function which returns the parameters to consider when comparing
     *
     * @returns an array of PathNodes from the first path which match the nodes in the second path
     */
    PathUtils.matching = function (pathA, pathB, paramsFn) {
      var done = false;
      var tuples = arrayTuples(pathA, pathB);
      return tuples.reduce(function (matching, _a) {
        var nodeA = _a[0], nodeB = _a[1];
        done = done || !nodeA.equals(nodeB, paramsFn);
        return done ? matching : matching.concat(nodeA);
      }, []);
    };
    /**
     * Returns true if two paths are identical.
     *
     * @param pathA
     * @param pathB
     * @param paramsFn a function which returns the parameters to consider when comparing
     * @returns true if the the states and parameter values for both paths are identical
     */
    PathUtils.equals = function (pathA, pathB, paramsFn) {
      return pathA.length === pathB.length &&
        PathUtils.matching(pathA, pathB, paramsFn).length === pathA.length;
    };
    /**
     * Return a subpath of a path, which stops at the first matching node
     *
     * Given an array of nodes, returns a subset of the array starting from the first node,
     * stopping when the first node matches the predicate.
     *
     * @param path a path of [[PathNode]]s
     * @param predicate a [[Predicate]] fn that matches [[PathNode]]s
     * @returns a subpath up to the matching node, or undefined if no match is found
     */
    PathUtils.subPath = function (path, predicate) {
      var node = find(path, predicate);
      var elementIdx = path.indexOf(node);
      return elementIdx === -1 ? undefined : path.slice(0, elementIdx + 1);
    };
    PathUtils.nonDynamicParams = function (node) {
      return node.state.parameters({ inherit: false })
        .filter(function (param) { return !param.dynamic; });
    };
    /** Gets the raw parameter values from a path */
    PathUtils.paramValues = function (path) {
      return path.reduce(function (acc, node) { return extend(acc, node.paramValues); }, {});
    };
    return PathUtils;
  }());

  /**
   * @coreapi
   * @module resolve
   */ /** for typedoc */
// TODO: explicitly make this user configurable
  var defaultResolvePolicy = {
      when: "LAZY",
      async: "WAIT"
    };
  /**
   * The basic building block for the resolve system.
   *
   * Resolvables encapsulate a state's resolve's resolveFn, the resolveFn's declared dependencies, the wrapped (.promise),
   * and the unwrapped-when-complete (.data) result of the resolveFn.
   *
   * Resolvable.get() either retrieves the Resolvable's existing promise, or else invokes resolve() (which invokes the
   * resolveFn) and returns the resulting promise.
   *
   * Resolvable.get() and Resolvable.resolve() both execute within a context path, which is passed as the first
   * parameter to those fns.
   */
  var Resolvable = /** @class */ (function () {
    function Resolvable(arg1, resolveFn, deps, policy, data) {
      this.resolved = false;
      this.promise = undefined;
      if (arg1 instanceof Resolvable) {
        extend(this, arg1);
      }
      else if (isFunction(resolveFn)) {
        if (isNullOrUndefined(arg1))
          throw new Error("new Resolvable(): token argument is required");
        if (!isFunction(resolveFn))
          throw new Error("new Resolvable(): resolveFn argument must be a function");
        this.token = arg1;
        this.policy = policy;
        this.resolveFn = resolveFn;
        this.deps = deps || [];
        this.data = data;
        this.resolved = data !== undefined;
        this.promise = this.resolved ? services.$q.when(this.data) : undefined;
      }
      else if (isObject(arg1) && arg1.token && isFunction(arg1.resolveFn)) {
        var literal = arg1;
        return new Resolvable(literal.token, literal.resolveFn, literal.deps, literal.policy, literal.data);
      }
    }
    Resolvable.prototype.getPolicy = function (state) {
      var thisPolicy = this.policy || {};
      var statePolicy = state && state.resolvePolicy || {};
      return {
        when: thisPolicy.when || statePolicy.when || defaultResolvePolicy.when,
        async: thisPolicy.async || statePolicy.async || defaultResolvePolicy.async,
      };
    };
    /**
     * Asynchronously resolve this Resolvable's data
     *
     * Given a ResolveContext that this Resolvable is found in:
     * Wait for this Resolvable's dependencies, then invoke this Resolvable's function
     * and update the Resolvable's state
     */
    Resolvable.prototype.resolve = function (resolveContext, trans) {
      var _this = this;
      var $q = services.$q;
      // Gets all dependencies from ResolveContext and wait for them to be resolved
      var getResolvableDependencies = function () {
        return $q.all(resolveContext.getDependencies(_this).map(function (resolvable) {
          return resolvable.get(resolveContext, trans);
        }));
      };
      // Invokes the resolve function passing the resolved dependencies as arguments
      var invokeResolveFn = function (resolvedDeps) {
        return _this.resolveFn.apply(null, resolvedDeps);
      };
      /**
       * For RXWAIT policy:
       *
       * Given an observable returned from a resolve function:
       * - enables .cache() mode (this allows multicast subscribers)
       * - then calls toPromise() (this triggers subscribe() and thus fetches)
       * - Waits for the promise, then return the cached observable (not the first emitted value).
       */
      var waitForRx = function (observable$) {
        var cached = observable$.cache(1);
        return cached.take(1).toPromise().then(function () { return cached; });
      };
      // If the resolve policy is RXWAIT, wait for the observable to emit something. otherwise pass through.
      var node = resolveContext.findNode(this);
      var state = node && node.state;
      var maybeWaitForRx = this.getPolicy(state).async === "RXWAIT" ? waitForRx : identity;
      // After the final value has been resolved, update the state of the Resolvable
      var applyResolvedValue = function (resolvedValue) {
        _this.data = resolvedValue;
        _this.resolved = true;
        trace.traceResolvableResolved(_this, trans);
        return _this.data;
      };
      // Sets the promise property first, then getsResolvableDependencies in the context of the promise chain. Always waits one tick.
      return this.promise = $q.when()
        .then(getResolvableDependencies)
        .then(invokeResolveFn)
        .then(maybeWaitForRx)
        .then(applyResolvedValue);
    };
    /**
     * Gets a promise for this Resolvable's data.
     *
     * Fetches the data and returns a promise.
     * Returns the existing promise if it has already been fetched once.
     */
    Resolvable.prototype.get = function (resolveContext, trans) {
      return this.promise || this.resolve(resolveContext, trans);
    };
    Resolvable.prototype.toString = function () {
      return "Resolvable(token: " + stringify(this.token) + ", requires: [" + this.deps.map(stringify) + "])";
    };
    Resolvable.prototype.clone = function () {
      return new Resolvable(this);
    };
    Resolvable.fromData = function (token, data) {
      return new Resolvable(token, function () { return data; }, null, null, data);
    };
    return Resolvable;
  }());

  /** @internalapi */
  var resolvePolicies = {
    when: {
      LAZY: "LAZY",
      EAGER: "EAGER"
    },
    async: {
      WAIT: "WAIT",
      NOWAIT: "NOWAIT",
      RXWAIT: "RXWAIT"
    }
  };

  /** @module resolve */
  /** for typedoc */
  var whens = resolvePolicies.when;
  var ALL_WHENS = [whens.EAGER, whens.LAZY];
  var EAGER_WHENS = [whens.EAGER];
  var NATIVE_INJECTOR_TOKEN = "Native Injector";
  /**
   * Encapsulates Dependency Injection for a path of nodes
   *
   * UI-Router states are organized as a tree.
   * A nested state has a path of ancestors to the root of the tree.
   * When a state is being activated, each element in the path is wrapped as a [[PathNode]].
   * A `PathNode` is a stateful object that holds things like parameters and resolvables for the state being activated.
   *
   * The ResolveContext closes over the [[PathNode]]s, and provides DI for the last node in the path.
   */
  var ResolveContext = /** @class */ (function () {
    function ResolveContext(_path) {
      this._path = _path;
    }
    /** Gets all the tokens found in the resolve context, de-duplicated */
    ResolveContext.prototype.getTokens = function () {
      return this._path.reduce(function (acc, node) { return acc.concat(node.resolvables.map(function (r) { return r.token; })); }, []).reduce(uniqR, []);
    };
    /**
     * Gets the Resolvable that matches the token
     *
     * Gets the last Resolvable that matches the token in this context, or undefined.
     * Throws an error if it doesn't exist in the ResolveContext
     */
    ResolveContext.prototype.getResolvable = function (token) {
      var matching = this._path.map(function (node) { return node.resolvables; })
        .reduce(unnestR, [])
        .filter(function (r) { return r.token === token; });
      return tail(matching);
    };
    /** Returns the [[ResolvePolicy]] for the given [[Resolvable]] */
    ResolveContext.prototype.getPolicy = function (resolvable) {
      var node = this.findNode(resolvable);
      return resolvable.getPolicy(node.state);
    };
    /**
     * Returns a ResolveContext that includes a portion of this one
     *
     * Given a state, this method creates a new ResolveContext from this one.
     * The new context starts at the first node (root) and stops at the node for the `state` parameter.
     *
     * #### Why
     *
     * When a transition is created, the nodes in the "To Path" are injected from a ResolveContext.
     * A ResolveContext closes over a path of [[PathNode]]s and processes the resolvables.
     * The "To State" can inject values from its own resolvables, as well as those from all its ancestor state's (node's).
     * This method is used to create a narrower context when injecting ancestor nodes.
     *
     * @example
     * `let ABCD = new ResolveContext([A, B, C, D]);`
     *
     * Given a path `[A, B, C, D]`, where `A`, `B`, `C` and `D` are nodes for states `a`, `b`, `c`, `d`:
     * When injecting `D`, `D` should have access to all resolvables from `A`, `B`, `C`, `D`.
     * However, `B` should only be able to access resolvables from `A`, `B`.
     *
     * When resolving for the `B` node, first take the full "To Path" Context `[A,B,C,D]` and limit to the subpath `[A,B]`.
     * `let AB = ABCD.subcontext(a)`
     */
    ResolveContext.prototype.subContext = function (state) {
      return new ResolveContext(PathUtils.subPath(this._path, function (node) { return node.state === state; }));
    };
    /**
     * Adds Resolvables to the node that matches the state
     *
     * This adds a [[Resolvable]] (generally one created on the fly; not declared on a [[StateDeclaration.resolve]] block).
     * The resolvable is added to the node matching the `state` parameter.
     *
     * These new resolvables are not automatically fetched.
     * The calling code should either fetch them, fetch something that depends on them,
     * or rely on [[resolvePath]] being called when some state is being entered.
     *
     * Note: each resolvable's [[ResolvePolicy]] is merged with the state's policy, and the global default.
     *
     * @param newResolvables the new Resolvables
     * @param state Used to find the node to put the resolvable on
     */
    ResolveContext.prototype.addResolvables = function (newResolvables, state) {
      var node = find(this._path, propEq('state', state));
      var keys = newResolvables.map(function (r) { return r.token; });
      node.resolvables = node.resolvables.filter(function (r) { return keys.indexOf(r.token) === -1; }).concat(newResolvables);
    };
    /**
     * Returns a promise for an array of resolved path Element promises
     *
     * @param when
     * @param trans
     * @returns {Promise<any>|any}
     */
    ResolveContext.prototype.resolvePath = function (when, trans) {
      var _this = this;
      if (when === void 0) { when = "LAZY"; }
      // This option determines which 'when' policy Resolvables we are about to fetch.
      var whenOption = inArray(ALL_WHENS, when) ? when : "LAZY";
      // If the caller specified EAGER, only the EAGER Resolvables are fetched.
      // if the caller specified LAZY, both EAGER and LAZY Resolvables are fetched.`
      var matchedWhens = whenOption === resolvePolicies.when.EAGER ? EAGER_WHENS : ALL_WHENS;
      // get the subpath to the state argument, if provided
      trace.traceResolvePath(this._path, when, trans);
      var matchesPolicy = function (acceptedVals, whenOrAsync) {
        return function (resolvable) {
          return inArray(acceptedVals, _this.getPolicy(resolvable)[whenOrAsync]);
        };
      };
      // Trigger all the (matching) Resolvables in the path
      // Reduce all the "WAIT" Resolvables into an array
      var promises = this._path.reduce(function (acc, node) {
        var nodeResolvables = node.resolvables.filter(matchesPolicy(matchedWhens, 'when'));
        var nowait = nodeResolvables.filter(matchesPolicy(['NOWAIT'], 'async'));
        var wait = nodeResolvables.filter(not(matchesPolicy(['NOWAIT'], 'async')));
        // For the matching Resolvables, start their async fetch process.
        var subContext = _this.subContext(node.state);
        var getResult = function (r) { return r.get(subContext, trans)
          .then(function (value) { return ({ token: r.token, value: value }); }); };
        nowait.forEach(getResult);
        return acc.concat(wait.map(getResult));
      }, []);
      // Wait for all the "WAIT" resolvables
      return services.$q.all(promises);
    };
    ResolveContext.prototype.injector = function () {
      return this._injector || (this._injector = new UIInjectorImpl(this));
    };
    ResolveContext.prototype.findNode = function (resolvable) {
      return find(this._path, function (node) { return inArray(node.resolvables, resolvable); });
    };
    /**
     * Gets the async dependencies of a Resolvable
     *
     * Given a Resolvable, returns its dependencies as a Resolvable[]
     */
    ResolveContext.prototype.getDependencies = function (resolvable) {
      var _this = this;
      var node = this.findNode(resolvable);
      // Find which other resolvables are "visible" to the `resolvable` argument
      // subpath stopping at resolvable's node, or the whole path (if the resolvable isn't in the path)
      var subPath = PathUtils.subPath(this._path, function (x) { return x === node; }) || this._path;
      var availableResolvables = subPath
        .reduce(function (acc, _node) { return acc.concat(_node.resolvables); }, []) //all of subpath's resolvables
        .filter(function (res) { return res !== resolvable; }); // filter out the `resolvable` argument
      var getDependency = function (token) {
        var matching = availableResolvables.filter(function (r) { return r.token === token; });
        if (matching.length)
          return tail(matching);
        var fromInjector = _this.injector().getNative(token);
        if (isUndefined(fromInjector)) {
          throw new Error("Could not find Dependency Injection token: " + stringify(token));
        }
        return new Resolvable(token, function () { return fromInjector; }, [], fromInjector);
      };
      return resolvable.deps.map(getDependency);
    };
    return ResolveContext;
  }());
  var UIInjectorImpl = /** @class */ (function () {
    function UIInjectorImpl(context) {
      this.context = context;
      this.native = this.get(NATIVE_INJECTOR_TOKEN) || services.$injector;
    }
    UIInjectorImpl.prototype.get = function (token) {
      var resolvable = this.context.getResolvable(token);
      if (resolvable) {
        if (this.context.getPolicy(resolvable).async === 'NOWAIT') {
          return resolvable.get(this.context);
        }
        if (!resolvable.resolved) {
          throw new Error("Resolvable async .get() not complete:" + stringify(resolvable.token));
        }
        return resolvable.data;
      }
      return this.getNative(token);
    };
    UIInjectorImpl.prototype.getAsync = function (token) {
      var resolvable = this.context.getResolvable(token);
      if (resolvable)
        return resolvable.get(this.context);
      return services.$q.when(this.native.get(token));
    };
    UIInjectorImpl.prototype.getNative = function (token) {
      return this.native && this.native.get(token);
    };
    return UIInjectorImpl;
  }());

  /**
   * @coreapi
   * @module transition
   */
  /** for typedoc */
  /** @hidden */
  var stateSelf = prop("self");
  /**
   * Represents a transition between two states.
   *
   * When navigating to a state, we are transitioning **from** the current state **to** the new state.
   *
   * This object contains all contextual information about the to/from states, parameters, resolves.
   * It has information about all states being entered and exited as a result of the transition.
   */
  var Transition = /** @class */ (function () {
    /**
     * Creates a new Transition object.
     *
     * If the target state is not valid, an error is thrown.
     *
     * @internalapi
     *
     * @param fromPath The path of [[PathNode]]s from which the transition is leaving.  The last node in the `fromPath`
     *        encapsulates the "from state".
     * @param targetState The target state and parameters being transitioned to (also, the transition options)
     * @param router The [[UIRouter]] instance
     */
    function Transition(fromPath, targetState, router) {
      var _this = this;
      /** @hidden */
      this._deferred = services.$q.defer();
      /**
       * This promise is resolved or rejected based on the outcome of the Transition.
       *
       * When the transition is successful, the promise is resolved
       * When the transition is unsuccessful, the promise is rejected with the [[Rejection]] or javascript error
       */
      this.promise = this._deferred.promise;
      /** @hidden Holds the hook registration functions such as those passed to Transition.onStart() */
      this._registeredHooks = {};
      /** @hidden */
      this._hookBuilder = new HookBuilder(this);
      /** Checks if this transition is currently active/running. */
      this.isActive = function () {
        return _this.router.globals.transition === _this;
      };
      this.router = router;
      this._targetState = targetState;
      if (!targetState.valid()) {
        throw new Error(targetState.error());
      }
      // current() is assumed to come from targetState.options, but provide a naive implementation otherwise.
      this._options = extend({ current: val(this) }, targetState.options());
      this.$id = router.transitionService._transitionCount++;
      var toPath = PathUtils.buildToPath(fromPath, targetState);
      this._treeChanges = PathUtils.treeChanges(fromPath, toPath, this._options.reloadState);
      this.createTransitionHookRegFns();
      var onCreateHooks = this._hookBuilder.buildHooksForPhase(exports.TransitionHookPhase.CREATE);
      TransitionHook.invokeHooks(onCreateHooks, function () { return null; });
      this.applyViewConfigs(router);
    }
    /** @hidden */
    Transition.prototype.onBefore = function (criteria, callback, options) { return; };
    /** @inheritdoc */
    Transition.prototype.onStart = function (criteria, callback, options) { return; };
    /** @inheritdoc */
    Transition.prototype.onExit = function (criteria, callback, options) { return; };
    /** @inheritdoc */
    Transition.prototype.onRetain = function (criteria, callback, options) { return; };
    /** @inheritdoc */
    Transition.prototype.onEnter = function (criteria, callback, options) { return; };
    /** @inheritdoc */
    Transition.prototype.onFinish = function (criteria, callback, options) { return; };
    /** @inheritdoc */
    Transition.prototype.onSuccess = function (criteria, callback, options) { return; };
    /** @inheritdoc */
    Transition.prototype.onError = function (criteria, callback, options) { return; };
    /** @hidden
     * Creates the transition-level hook registration functions
     * (which can then be used to register hooks)
     */
    Transition.prototype.createTransitionHookRegFns = function () {
      var _this = this;
      this.router.transitionService._pluginapi._getEvents()
        .filter(function (type) { return type.hookPhase !== exports.TransitionHookPhase.CREATE; })
        .forEach(function (type) { return makeEvent(_this, _this.router.transitionService, type); });
    };
    /** @internalapi */
    Transition.prototype.getHooks = function (hookName) {
      return this._registeredHooks[hookName];
    };
    Transition.prototype.applyViewConfigs = function (router) {
      var enteringStates = this._treeChanges.entering.map(function (node) { return node.state; });
      PathUtils.applyViewConfigs(router.transitionService.$view, this._treeChanges.to, enteringStates);
    };
    /**
     * @internalapi
     *
     * @returns the internal from [State] object
     */
    Transition.prototype.$from = function () {
      return tail(this._treeChanges.from).state;
    };
    /**
     * @internalapi
     *
     * @returns the internal to [State] object
     */
    Transition.prototype.$to = function () {
      return tail(this._treeChanges.to).state;
    };
    /**
     * Returns the "from state"
     *
     * Returns the state that the transition is coming *from*.
     *
     * @returns The state declaration object for the Transition's ("from state").
     */
    Transition.prototype.from = function () {
      return this.$from().self;
    };
    /**
     * Returns the "to state"
     *
     * Returns the state that the transition is going *to*.
     *
     * @returns The state declaration object for the Transition's target state ("to state").
     */
    Transition.prototype.to = function () {
      return this.$to().self;
    };
    /**
     * Gets the Target State
     *
     * A transition's [[TargetState]] encapsulates the [[to]] state, the [[params]], and the [[options]] as a single object.
     *
     * @returns the [[TargetState]] of this Transition
     */
    Transition.prototype.targetState = function () {
      return this._targetState;
    };
    /**
     * Determines whether two transitions are equivalent.
     * @deprecated
     */
    Transition.prototype.is = function (compare) {
      if (compare instanceof Transition) {
        // TODO: Also compare parameters
        return this.is({ to: compare.$to().name, from: compare.$from().name });
      }
      return !((compare.to && !matchState(this.$to(), compare.to)) ||
        (compare.from && !matchState(this.$from(), compare.from)));
    };
    Transition.prototype.params = function (pathname) {
      if (pathname === void 0) { pathname = "to"; }
      return Object.freeze(this._treeChanges[pathname].map(prop("paramValues")).reduce(mergeR, {}));
    };
    /**
     * Creates a [[UIInjector]] Dependency Injector
     *
     * Returns a Dependency Injector for the Transition's target state (to state).
     * The injector provides resolve values which the target state has access to.
     *
     * The `UIInjector` can also provide values from the native root/global injector (ng1/ng2).
     *
     * #### Example:
     * ```js
     * .onEnter({ entering: 'myState' }, trans => {
     *   var myResolveValue = trans.injector().get('myResolve');
     *   // Inject a global service from the global/native injector (if it exists)
     *   var MyService = trans.injector().get('MyService');
     * })
     * ```
     *
     * In some cases (such as `onBefore`), you may need access to some resolve data but it has not yet been fetched.
     * You can use [[UIInjector.getAsync]] to get a promise for the data.
     * #### Example:
     * ```js
     * .onBefore({}, trans => {
     *   return trans.injector().getAsync('myResolve').then(myResolveValue =>
     *     return myResolveValue !== 'ABORT';
     *   });
     * });
     * ```
     *
     * If a `state` is provided, the injector that is returned will be limited to resolve values that the provided state has access to.
     * This can be useful if both a parent state `foo` and a child state `foo.bar` have both defined a resolve such as `data`.
     * #### Example:
     * ```js
     * .onEnter({ to: 'foo.bar' }, trans => {
     *   // returns result of `foo` state's `data` resolve
     *   // even though `foo.bar` also has a `data` resolve
     *   var fooData = trans.injector('foo').get('data');
     * });
     * ```
     *
     * If you need resolve data from the exiting states, pass `'from'` as `pathName`.
     * The resolve data from the `from` path will be returned.
     * #### Example:
     * ```js
     * .onExit({ exiting: 'foo.bar' }, trans => {
     *   // Gets the resolve value of `data` from the exiting state.
     *   var fooData = trans.injector(null, 'foo.bar').get('data');
     * });
     * ```
     *
     *
     * @param state Limits the resolves provided to only the resolves the provided state has access to.
     * @param pathName Default: `'to'`: Chooses the path for which to create the injector. Use this to access resolves for `exiting` states.
     *
     * @returns a [[UIInjector]]
     */
    Transition.prototype.injector = function (state, pathName) {
      if (pathName === void 0) { pathName = "to"; }
      var path = this._treeChanges[pathName];
      if (state)
        path = PathUtils.subPath(path, function (node) { return node.state === state || node.state.name === state; });
      return new ResolveContext(path).injector();
    };
    /**
     * Gets all available resolve tokens (keys)
     *
     * This method can be used in conjunction with [[injector]] to inspect the resolve values
     * available to the Transition.
     *
     * This returns all the tokens defined on [[StateDeclaration.resolve]] blocks, for the states
     * in the Transition's [[TreeChanges.to]] path.
     *
     * #### Example:
     * This example logs all resolve values
     * ```js
     * let tokens = trans.getResolveTokens();
     * tokens.forEach(token => console.log(token + " = " + trans.injector().get(token)));
     * ```
     *
     * #### Example:
     * This example creates promises for each resolve value.
     * This triggers fetches of resolves (if any have not yet been fetched).
     * When all promises have all settled, it logs the resolve values.
     * ```js
     * let tokens = trans.getResolveTokens();
     * let promise = tokens.map(token => trans.injector().getAsync(token));
     * Promise.all(promises).then(values => console.log("Resolved values: " + values));
     * ```
     *
     * Note: Angular 1 users whould use `$q.all()`
     *
     * @param pathname resolve context's path name (e.g., `to` or `from`)
     *
     * @returns an array of resolve tokens (keys)
     */
    Transition.prototype.getResolveTokens = function (pathname) {
      if (pathname === void 0) { pathname = "to"; }
      return new ResolveContext(this._treeChanges[pathname]).getTokens();
    };
    /**
     * Dynamically adds a new [[Resolvable]] (i.e., [[StateDeclaration.resolve]]) to this transition.
     *
     * #### Example:
     * ```js
     * transitionService.onBefore({}, transition => {
     *   transition.addResolvable({
     *     token: 'myResolve',
     *     deps: ['MyService'],
     *     resolveFn: myService => myService.getData()
     *   });
     * });
     * ```
     *
     * @param resolvable a [[ResolvableLiteral]] object (or a [[Resolvable]])
     * @param state the state in the "to path" which should receive the new resolve (otherwise, the root state)
     */
    Transition.prototype.addResolvable = function (resolvable, state) {
      if (state === void 0) { state = ""; }
      resolvable = is(Resolvable)(resolvable) ? resolvable : new Resolvable(resolvable);
      var stateName = (typeof state === "string") ? state : state.name;
      var topath = this._treeChanges.to;
      var targetNode = find(topath, function (node) { return node.state.name === stateName; });
      var resolveContext = new ResolveContext(topath);
      resolveContext.addResolvables([resolvable], targetNode.state);
    };
    /**
     * Gets the transition from which this transition was redirected.
     *
     * If the current transition is a redirect, this method returns the transition that was redirected.
     *
     * #### Example:
     * ```js
     * let transitionA = $state.go('A').transition
     * transitionA.onStart({}, () => $state.target('B'));
     * $transitions.onSuccess({ to: 'B' }, (trans) => {
     *   trans.to().name === 'B'; // true
     *   trans.redirectedFrom() === transitionA; // true
     * });
     * ```
     *
     * @returns The previous Transition, or null if this Transition is not the result of a redirection
     */
    Transition.prototype.redirectedFrom = function () {
      return this._options.redirectedFrom || null;
    };
    /**
     * Gets the original transition in a redirect chain
     *
     * A transition might belong to a long chain of multiple redirects.
     * This method walks the [[redirectedFrom]] chain back to the original (first) transition in the chain.
     *
     * #### Example:
     * ```js
     * // states
     * registry.register({ name: 'A', redirectTo: 'B' });
     * registry.register({ name: 'B', redirectTo: 'C' });
     * registry.register({ name: 'C', redirectTo: 'D' });
     * registry.register({ name: 'D' });
     *
     * let transitionA = $state.go('A').transition
     *
     * $transitions.onSuccess({ to: 'D' }, (trans) => {
     *   trans.to().name === 'D'; // true
     *   trans.redirectedFrom().to().name === 'C'; // true
     *   trans.originalTransition() === transitionA; // true
     *   trans.originalTransition().to().name === 'A'; // true
     * });
     * ```
     *
     * @returns The original Transition that started a redirect chain
     */
    Transition.prototype.originalTransition = function () {
      var rf = this.redirectedFrom();
      return (rf && rf.originalTransition()) || this;
    };
    /**
     * Get the transition options
     *
     * @returns the options for this Transition.
     */
    Transition.prototype.options = function () {
      return this._options;
    };
    /**
     * Gets the states being entered.
     *
     * @returns an array of states that will be entered during this transition.
     */
    Transition.prototype.entering = function () {
      return map(this._treeChanges.entering, prop('state')).map(stateSelf);
    };
    /**
     * Gets the states being exited.
     *
     * @returns an array of states that will be exited during this transition.
     */
    Transition.prototype.exiting = function () {
      return map(this._treeChanges.exiting, prop('state')).map(stateSelf).reverse();
    };
    /**
     * Gets the states being retained.
     *
     * @returns an array of states that are already entered from a previous Transition, that will not be
     *    exited during this Transition
     */
    Transition.prototype.retained = function () {
      return map(this._treeChanges.retained, prop('state')).map(stateSelf);
    };
    /**
     * Get the [[ViewConfig]]s associated with this Transition
     *
     * Each state can define one or more views (template/controller), which are encapsulated as `ViewConfig` objects.
     * This method fetches the `ViewConfigs` for a given path in the Transition (e.g., "to" or "entering").
     *
     * @param pathname the name of the path to fetch views for:
     *   (`'to'`, `'from'`, `'entering'`, `'exiting'`, `'retained'`)
     * @param state If provided, only returns the `ViewConfig`s for a single state in the path
     *
     * @returns a list of ViewConfig objects for the given path.
     */
    Transition.prototype.views = function (pathname, state) {
      if (pathname === void 0) { pathname = "entering"; }
      var path = this._treeChanges[pathname];
      path = !state ? path : path.filter(propEq('state', state));
      return path.map(prop("views")).filter(identity).reduce(unnestR, []);
    };
    Transition.prototype.treeChanges = function (pathname) {
      return pathname ? this._treeChanges[pathname] : this._treeChanges;
    };
    /**
     * Creates a new transition that is a redirection of the current one.
     *
     * This transition can be returned from a [[TransitionService]] hook to
     * redirect a transition to a new state and/or set of parameters.
     *
     * @internalapi
     *
     * @returns Returns a new [[Transition]] instance.
     */
    Transition.prototype.redirect = function (targetState) {
      var redirects = 1, trans = this;
      while ((trans = trans.redirectedFrom()) != null) {
        if (++redirects > 20)
          throw new Error("Too many consecutive Transition redirects (20+)");
      }
      var redirectOpts = { redirectedFrom: this, source: "redirect" };
      // If the original transition was caused by URL sync, then use { location: 'replace' }
      // on the new transition (unless the target state explicitly specifies location: false).
      // This causes the original url to be replaced with the url for the redirect target
      // so the original url disappears from the browser history.
      if (this.options().source === 'url' && targetState.options().location !== false) {
        redirectOpts.location = 'replace';
      }
      var newOptions = extend({}, this.options(), targetState.options(), redirectOpts);
      targetState = targetState.withOptions(newOptions, true);
      var newTransition = this.router.transitionService.create(this._treeChanges.from, targetState);
      var originalEnteringNodes = this._treeChanges.entering;
      var redirectEnteringNodes = newTransition._treeChanges.entering;
      // --- Re-use resolve data from original transition ---
      // When redirecting from a parent state to a child state where the parent parameter values haven't changed
      // (because of the redirect), the resolves fetched by the original transition are still valid in the
      // redirected transition.
      //
      // This allows you to define a redirect on a parent state which depends on an async resolve value.
      // You can wait for the resolve, then redirect to a child state based on the result.
      // The redirected transition does not have to re-fetch the resolve.
      // ---------------------------------------------------------
      var nodeIsReloading = function (reloadState) { return function (node) {
        return reloadState && node.state.includes[reloadState.name];
      }; };
      // Find any "entering" nodes in the redirect path that match the original path and aren't being reloaded
      var matchingEnteringNodes = PathUtils.matching(redirectEnteringNodes, originalEnteringNodes, PathUtils.nonDynamicParams)
        .filter(not(nodeIsReloading(targetState.options().reloadState)));
      // Use the existing (possibly pre-resolved) resolvables for the matching entering nodes.
      matchingEnteringNodes.forEach(function (node, idx) {
        node.resolvables = originalEnteringNodes[idx].resolvables;
      });
      return newTransition;
    };
    /** @hidden If a transition doesn't exit/enter any states, returns any [[Param]] whose value changed */
    Transition.prototype._changedParams = function () {
      var tc = this._treeChanges;
      /** Return undefined if it's not a "dynamic" transition, for the following reasons */
      // If user explicitly wants a reload
      if (this._options.reload)
        return undefined;
      // If any states are exiting or entering
      if (tc.exiting.length || tc.entering.length)
        return undefined;
      // If to/from path lengths differ
      if (tc.to.length !== tc.from.length)
        return undefined;
      // If the to/from paths are different
      var pathsDiffer = arrayTuples(tc.to, tc.from)
        .map(function (tuple) { return tuple[0].state !== tuple[1].state; })
        .reduce(anyTrueR, false);
      if (pathsDiffer)
        return undefined;
      // Find any parameter values that differ
      var nodeSchemas = tc.to.map(function (node) { return node.paramSchema; });
      var _a = [tc.to, tc.from].map(function (path) { return path.map(function (x) { return x.paramValues; }); }), toValues = _a[0], fromValues = _a[1];
      var tuples = arrayTuples(nodeSchemas, toValues, fromValues);
      return tuples.map(function (_a) {
        var schema = _a[0], toVals = _a[1], fromVals = _a[2];
        return Param.changed(schema, toVals, fromVals);
      }).reduce(unnestR, []);
    };
    /**
     * Returns true if the transition is dynamic.
     *
     * A transition is dynamic if no states are entered nor exited, but at least one dynamic parameter has changed.
     *
     * @returns true if the Transition is dynamic
     */
    Transition.prototype.dynamic = function () {
      var changes = this._changedParams();
      return !changes ? false : changes.map(function (x) { return x.dynamic; }).reduce(anyTrueR, false);
    };
    /**
     * Returns true if the transition is ignored.
     *
     * A transition is ignored if no states are entered nor exited, and no parameter values have changed.
     *
     * @returns true if the Transition is ignored.
     */
    Transition.prototype.ignored = function () {
      return !!this._ignoredReason();
    };
    /** @hidden */
    Transition.prototype._ignoredReason = function () {
      var pending = this.router.globals.transition;
      var reloadState = this._options.reloadState;
      var same = function (pathA, pathB) {
        if (pathA.length !== pathB.length)
          return false;
        var matching = PathUtils.matching(pathA, pathB);
        return pathA.length === matching.filter(function (node) { return !reloadState || !node.state.includes[reloadState.name]; }).length;
      };
      var newTC = this.treeChanges();
      var pendTC = pending && pending.treeChanges();
      if (pendTC && same(pendTC.to, newTC.to) && same(pendTC.exiting, newTC.exiting))
        return "SameAsPending";
      if (newTC.exiting.length === 0 && newTC.entering.length === 0 && same(newTC.from, newTC.to))
        return "SameAsCurrent";
    };
    /**
     * Runs the transition
     *
     * This method is generally called from the [[StateService.transitionTo]]
     *
     * @internalapi
     *
     * @returns a promise for a successful transition.
     */
    Transition.prototype.run = function () {
      var _this = this;
      var runAllHooks = TransitionHook.runAllHooks;
      // Gets transition hooks array for the given phase
      var getHooksFor = function (phase) {
        return _this._hookBuilder.buildHooksForPhase(phase);
      };
      // When the chain is complete, then resolve or reject the deferred
      var transitionSuccess = function () {
        trace.traceSuccess(_this.$to(), _this);
        _this.success = true;
        _this._deferred.resolve(_this.to());
        runAllHooks(getHooksFor(exports.TransitionHookPhase.SUCCESS));
      };
      var transitionError = function (reason) {
        trace.traceError(reason, _this);
        _this.success = false;
        _this._deferred.reject(reason);
        _this._error = reason;
        runAllHooks(getHooksFor(exports.TransitionHookPhase.ERROR));
      };
      var runTransition = function () {
        // Wait to build the RUN hook chain until the BEFORE hooks are done
        // This allows a BEFORE hook to dynamically add additional RUN hooks via the Transition object.
        var allRunHooks = getHooksFor(exports.TransitionHookPhase.RUN);
        var done = function () { return services.$q.when(undefined); };
        return TransitionHook.invokeHooks(allRunHooks, done);
      };
      var startTransition = function () {
        var globals = _this.router.globals;
        globals.lastStartedTransitionId = _this.$id;
        globals.transition = _this;
        globals.transitionHistory.enqueue(_this);
        trace.traceTransitionStart(_this);
        return services.$q.when(undefined);
      };
      var allBeforeHooks = getHooksFor(exports.TransitionHookPhase.BEFORE);
      TransitionHook.invokeHooks(allBeforeHooks, startTransition)
        .then(runTransition)
        .then(transitionSuccess, transitionError);
      return this.promise;
    };
    /**
     * Checks if the Transition is valid
     *
     * @returns true if the Transition is valid
     */
    Transition.prototype.valid = function () {
      return !this.error() || this.success !== undefined;
    };
    /**
     * Aborts this transition
     *
     * Imperative API to abort a Transition.
     * This only applies to Transitions that are not yet complete.
     */
    Transition.prototype.abort = function () {
      // Do not set flag if the transition is already complete
      if (isUndefined(this.success)) {
        this._aborted = true;
      }
    };
    /**
     * The Transition error reason.
     *
     * If the transition is invalid (and could not be run), returns the reason the transition is invalid.
     * If the transition was valid and ran, but was not successful, returns the reason the transition failed.
     *
     * @returns an error message explaining why the transition is invalid, or the reason the transition failed.
     */
    Transition.prototype.error = function () {
      var state = this.$to();
      if (state.self.abstract)
        return "Cannot transition to abstract state '" + state.name + "'";
      var paramDefs = state.parameters(), values$$1 = this.params();
      var invalidParams = paramDefs.filter(function (param) { return !param.validates(values$$1[param.id]); });
      if (invalidParams.length) {
        return "Param values not valid for state '" + state.name + "'. Invalid params: [ " + invalidParams.map(function (param) { return param.id; }).join(', ') + " ]";
      }
      if (this.success === false)
        return this._error;
    };
    /**
     * A string representation of the Transition
     *
     * @returns A string representation of the Transition
     */
    Transition.prototype.toString = function () {
      var fromStateOrName = this.from();
      var toStateOrName = this.to();
      var avoidEmptyHash = function (params) {
        return (params["#"] !== null && params["#"] !== undefined) ? params : omit(params, ["#"]);
      };
      // (X) means the to state is invalid.
      var id = this.$id, from = isObject(fromStateOrName) ? fromStateOrName.name : fromStateOrName, fromParams = stringify(avoidEmptyHash(this._treeChanges.from.map(prop('paramValues')).reduce(mergeR, {}))), toValid = this.valid() ? "" : "(X) ", to = isObject(toStateOrName) ? toStateOrName.name : toStateOrName, toParams = stringify(avoidEmptyHash(this.params()));
      return "Transition#" + id + "( '" + from + "'" + fromParams + " -> " + toValid + "'" + to + "'" + toParams + " )";
    };
    /** @hidden */
    Transition.diToken = Transition;
    return Transition;
  }());

  /**
   * Functions that manipulate strings
   *
   * Although these functions are exported, they are subject to change without notice.
   *
   * @module common_strings
   */ /** */
  /**
   * Returns a string shortened to a maximum length
   *
   * If the string is already less than the `max` length, return the string.
   * Else return the string, shortened to `max - 3` and append three dots ("...").
   *
   * @param max the maximum length of the string to return
   * @param str the input string
   */
  function maxLength(max, str) {
    if (str.length <= max)
      return str;
    return str.substr(0, max - 3) + "...";
  }
  /**
   * Returns a string, with spaces added to the end, up to a desired str length
   *
   * If the string is already longer than the desired length, return the string.
   * Else returns the string, with extra spaces on the end, such that it reaches `length` characters.
   *
   * @param length the desired length of the string to return
   * @param str the input string
   */
  function padString(length, str) {
    while (str.length < length)
      str += " ";
    return str;
  }
  function kebobString(camelCase) {
    return camelCase
      .replace(/^([A-Z])/, function ($1) { return $1.toLowerCase(); }) // replace first char
      .replace(/([A-Z])/g, function ($1) { return "-" + $1.toLowerCase(); }); // replace rest
  }
  function functionToString(fn) {
    var fnStr = fnToString(fn);
    var namedFunctionMatch = fnStr.match(/^(function [^ ]+\([^)]*\))/);
    var toStr = namedFunctionMatch ? namedFunctionMatch[1] : fnStr;
    var fnName = fn['name'] || "";
    if (fnName && toStr.match(/function \(/)) {
      return 'function ' + fnName + toStr.substr(9);
    }
    return toStr;
  }
  function fnToString(fn) {
    var _fn = isArray(fn) ? fn.slice(-1)[0] : fn;
    return _fn && _fn.toString() || "undefined";
  }
  var stringifyPatternFn = null;
  var stringifyPattern = function (value) {
    var isRejection = Rejection.isRejectionPromise;
    stringifyPatternFn = stringifyPatternFn || pattern([
      [not(isDefined), val("undefined")],
      [isNull, val("null")],
      [isPromise, val("[Promise]")],
      [isRejection, function (x) { return x._transitionRejection.toString(); }],
      [is(Rejection), invoke("toString")],
      [is(Transition), invoke("toString")],
      [is(Resolvable), invoke("toString")],
      [isInjectable, functionToString],
      [val(true), identity]
    ]);
    return stringifyPatternFn(value);
  };
  function stringify(o) {
    var seen = [];
    function format(val$$1) {
      if (isObject(val$$1)) {
        if (seen.indexOf(val$$1) !== -1)
          return '[circular ref]';
        seen.push(val$$1);
      }
      return stringifyPattern(val$$1);
    }
    return JSON.stringify(o, function (key, val$$1) { return format(val$$1); }).replace(/\\"/g, '"');
  }
  /** Returns a function that splits a string on a character or substring */
  var beforeAfterSubstr = function (char) { return function (str) {
    if (!str)
      return ["", ""];
    var idx = str.indexOf(char);
    if (idx === -1)
      return [str, ""];
    return [str.substr(0, idx), str.substr(idx + 1)];
  }; };
  var hostRegex = new RegExp('^(?:[a-z]+:)?//[^/]+/');
  var stripFile = function (str) { return str.replace(/\/[^/]*$/, ''); };
  var splitHash = beforeAfterSubstr("#");
  var splitQuery = beforeAfterSubstr("?");
  var splitEqual = beforeAfterSubstr("=");
  var trimHashVal = function (str) { return str ? str.replace(/^#/, "") : ""; };
  /**
   * Splits on a delimiter, but returns the delimiters in the array
   *
   * #### Example:
   * ```js
   * var splitOnSlashes = splitOnDelim('/');
   * splitOnSlashes("/foo"); // ["/", "foo"]
   * splitOnSlashes("/foo/"); // ["/", "foo", "/"]
   * ```
   */
  function splitOnDelim(delim) {
    var re = new RegExp("(" + delim + ")", "g");
    return function (str) {
      return str.split(re).filter(identity);
    };
  }

  /**
   * Reduce fn that joins neighboring strings
   *
   * Given an array of strings, returns a new array
   * where all neighboring strings have been joined.
   *
   * #### Example:
   * ```js
   * let arr = ["foo", "bar", 1, "baz", "", "qux" ];
   * arr.reduce(joinNeighborsR, []) // ["foobar", 1, "bazqux" ]
   * ```
   */
  function joinNeighborsR(acc, x) {
    if (isString(tail(acc)) && isString(x))
      return acc.slice(0, -1).concat(tail(acc) + x);
    return pushR(acc, x);
  }

  /** @module common */ /** for typedoc */

  /**
   * @coreapi
   * @module params
   */
  /** */
  /**
   * A registry for parameter types.
   *
   * This registry manages the built-in (and custom) parameter types.
   *
   * The built-in parameter types are:
   *
   * - [[string]]
   * - [[path]]
   * - [[query]]
   * - [[hash]]
   * - [[int]]
   * - [[bool]]
   * - [[date]]
   * - [[json]]
   * - [[any]]
   */
  var ParamTypes = /** @class */ (function () {
    /** @internalapi */
    function ParamTypes() {
      /** @hidden */
      this.enqueue = true;
      /** @hidden */
      this.typeQueue = [];
      /** @internalapi */
      this.defaultTypes = pick(ParamTypes.prototype, ["hash", "string", "query", "path", "int", "bool", "date", "json", "any"]);
      // Register default types. Store them in the prototype of this.types.
      var makeType = function (definition, name) {
        return new ParamType(extend({ name: name }, definition));
      };
      this.types = inherit(map(this.defaultTypes, makeType), {});
    }
    /** @internalapi */
    ParamTypes.prototype.dispose = function () {
      this.types = {};
    };
    /**
     * Registers a parameter type
     *
     * End users should call [[UrlMatcherFactory.type]], which delegates to this method.
     */
    ParamTypes.prototype.type = function (name, definition, definitionFn) {
      if (!isDefined(definition))
        return this.types[name];
      if (this.types.hasOwnProperty(name))
        throw new Error("A type named '" + name + "' has already been defined.");
      this.types[name] = new ParamType(extend({ name: name }, definition));
      if (definitionFn) {
        this.typeQueue.push({ name: name, def: definitionFn });
        if (!this.enqueue)
          this._flushTypeQueue();
      }
      return this;
    };
    /** @internalapi */
    ParamTypes.prototype._flushTypeQueue = function () {
      while (this.typeQueue.length) {
        var type = this.typeQueue.shift();
        if (type.pattern)
          throw new Error("You cannot override a type's .pattern at runtime.");
        extend(this.types[type.name], services.$injector.invoke(type.def));
      }
    };
    return ParamTypes;
  }());
  /** @hidden */
  function initDefaultTypes() {
    var makeDefaultType = function (def) {
      var valToString = function (val$$1) {
        return val$$1 != null ? val$$1.toString() : val$$1;
      };
      var defaultTypeBase = {
        encode: valToString,
        decode: valToString,
        is: is(String),
        pattern: /.*/,
        equals: function (a, b) { return a == b; },
      };
      return extend({}, defaultTypeBase, def);
    };
    // Default Parameter Type Definitions
    extend(ParamTypes.prototype, {
      string: makeDefaultType({}),
      path: makeDefaultType({
        pattern: /[^/]*/,
      }),
      query: makeDefaultType({}),
      hash: makeDefaultType({
        inherit: false,
      }),
      int: makeDefaultType({
        decode: function (val$$1) { return parseInt(val$$1, 10); },
        is: function (val$$1) {
          return !isNullOrUndefined(val$$1) && this.decode(val$$1.toString()) === val$$1;
        },
        pattern: /-?\d+/,
      }),
      bool: makeDefaultType({
        encode: function (val$$1) { return val$$1 && 1 || 0; },
        decode: function (val$$1) { return parseInt(val$$1, 10) !== 0; },
        is: is(Boolean),
        pattern: /0|1/,
      }),
      date: makeDefaultType({
        encode: function (val$$1) {
          return !this.is(val$$1) ? undefined : [
            val$$1.getFullYear(),
            ('0' + (val$$1.getMonth() + 1)).slice(-2),
            ('0' + val$$1.getDate()).slice(-2),
          ].join("-");
        },
        decode: function (val$$1) {
          if (this.is(val$$1))
            return val$$1;
          var match = this.capture.exec(val$$1);
          return match ? new Date(match[1], match[2] - 1, match[3]) : undefined;
        },
        is: function (val$$1) { return val$$1 instanceof Date && !isNaN(val$$1.valueOf()); },
        equals: function (l, r) {
          return ['getFullYear', 'getMonth', 'getDate']
            .reduce(function (acc, fn) { return acc && l[fn]() === r[fn](); }, true);
        },
        pattern: /[0-9]{4}-(?:0[1-9]|1[0-2])-(?:0[1-9]|[1-2][0-9]|3[0-1])/,
        capture: /([0-9]{4})-(0[1-9]|1[0-2])-(0[1-9]|[1-2][0-9]|3[0-1])/,
      }),
      json: makeDefaultType({
        encode: toJson,
        decode: fromJson,
        is: is(Object),
        equals: equals,
        pattern: /[^/]*/,
      }),
      // does not encode/decode
      any: makeDefaultType({
        encode: identity,
        decode: identity,
        is: function () { return true; },
        equals: equals,
      }),
    });
  }
  initDefaultTypes();

  /**
   * @coreapi
   * @module params
   */
  /** */
  /** @internalapi */
  var StateParams = /** @class */ (function () {
    function StateParams(params) {
      if (params === void 0) { params = {}; }
      extend(this, params);
    }
    /**
     * Merges a set of parameters with all parameters inherited between the common parents of the
     * current state and a given destination state.
     *
     * @param {Object} newParams The set of parameters which will be composited with inherited params.
     * @param {Object} $current Internal definition of object representing the current state.
     * @param {Object} $to Internal definition of object representing state to transition to.
     */
    StateParams.prototype.$inherit = function (newParams, $current, $to) {
      var parents = ancestors($current, $to), parentParams, inherited = {}, inheritList = [];
      for (var i in parents) {
        if (!parents[i] || !parents[i].params)
          continue;
        parentParams = Object.keys(parents[i].params);
        if (!parentParams.length)
          continue;
        for (var j in parentParams) {
          if (inheritList.indexOf(parentParams[j]) >= 0)
            continue;
          inheritList.push(parentParams[j]);
          inherited[parentParams[j]] = this[parentParams[j]];
        }
      }
      return extend({}, inherited, newParams);
    };

    return StateParams;
  }());

  /** @module path */ /** for typedoc */

  /** @module resolve */ /** for typedoc */

  /** @module state */ /** for typedoc */
  var parseUrl = function (url) {
      if (!isString(url))
        return false;
      var root$$1 = url.charAt(0) === '^';
      return { val: root$$1 ? url.substring(1) : url, root: root$$1 };
    };
  function nameBuilder(state) {
    return state.name;
  }
  function selfBuilder(state) {
    state.self.$$state = function () { return state; };
    return state.self;
  }
  function dataBuilder(state) {
    if (state.parent && state.parent.data) {
      state.data = state.self.data = inherit(state.parent.data, state.data);
    }
    return state.data;
  }
  var getUrlBuilder = function ($urlMatcherFactoryProvider, root$$1) {
    return function urlBuilder(state) {
      var stateDec = state;
      // For future states, i.e., states whose name ends with `.**`,
      // match anything that starts with the url prefix
      if (stateDec && stateDec.url && stateDec.name && stateDec.name.match(/\.\*\*$/)) {
        stateDec.url += "{remainder:any}"; // match any path (.*)
      }
      var parsed = parseUrl(stateDec.url), parent = state.parent;
      var url = !parsed ? stateDec.url : $urlMatcherFactoryProvider.compile(parsed.val, {
        params: state.params || {},
        paramMap: function (paramConfig, isSearch) {
          if (stateDec.reloadOnSearch === false && isSearch)
            paramConfig = extend(paramConfig || {}, { dynamic: true });
          return paramConfig;
        }
      });
      if (!url)
        return null;
      if (!$urlMatcherFactoryProvider.isMatcher(url))
        throw new Error("Invalid url '" + url + "' in state '" + state + "'");
      return (parsed && parsed.root) ? url : ((parent && parent.navigable) || root$$1()).url.append(url);
    };
  };
  var getNavigableBuilder = function (isRoot) {
    return function navigableBuilder(state) {
      return !isRoot(state) && state.url ? state : (state.parent ? state.parent.navigable : null);
    };
  };
  var getParamsBuilder = function (paramFactory) {
    return function paramsBuilder(state) {
      var makeConfigParam = function (config, id) { return paramFactory.fromConfig(id, null, config); };
      var urlParams = (state.url && state.url.parameters({ inherit: false })) || [];
      var nonUrlParams = values(mapObj(omit(state.params || {}, urlParams.map(prop('id'))), makeConfigParam));
      return urlParams.concat(nonUrlParams).map(function (p) { return [p.id, p]; }).reduce(applyPairs, {});
    };
  };
  function pathBuilder(state) {
    return state.parent ? state.parent.path.concat(state) : /*root*/ [state];
  }
  function includesBuilder(state) {
    var includes = state.parent ? extend({}, state.parent.includes) : {};
    includes[state.name] = true;
    return includes;
  }
  /**
   * This is a [[StateBuilder.builder]] function for the `resolve:` block on a [[StateDeclaration]].
   *
   * When the [[StateBuilder]] builds a [[StateObject]] object from a raw [[StateDeclaration]], this builder
   * validates the `resolve` property and converts it to a [[Resolvable]] array.
   *
   * resolve: input value can be:
   *
   * {
 *   // analyzed but not injected
 *   myFooResolve: function() { return "myFooData"; },
 *
 *   // function.toString() parsed, "DependencyName" dep as string (not min-safe)
 *   myBarResolve: function(DependencyName) { return DependencyName.fetchSomethingAsPromise() },
 *
 *   // Array split; "DependencyName" dep as string
 *   myBazResolve: [ "DependencyName", function(dep) { return dep.fetchSomethingAsPromise() },
 *
 *   // Array split; DependencyType dep as token (compared using ===)
 *   myQuxResolve: [ DependencyType, function(dep) { return dep.fetchSometingAsPromise() },
 *
 *   // val.$inject used as deps
 *   // where:
 *   //     corgeResolve.$inject = ["DependencyName"];
 *   //     function corgeResolve(dep) { dep.fetchSometingAsPromise() }
 *   // then "DependencyName" dep as string
 *   myCorgeResolve: corgeResolve,
 *
 *  // inject service by name
 *  // When a string is found, desugar creating a resolve that injects the named service
 *   myGraultResolve: "SomeService"
 * }
   *
   * or:
   *
   * [
   *   new Resolvable("myFooResolve", function() { return "myFooData" }),
   *   new Resolvable("myBarResolve", function(dep) { return dep.fetchSomethingAsPromise() }, [ "DependencyName" ]),
   *   { provide: "myBazResolve", useFactory: function(dep) { dep.fetchSomethingAsPromise() }, deps: [ "DependencyName" ] }
   * ]
   */
  function resolvablesBuilder(state) {
    /** convert resolve: {} and resolvePolicy: {} objects to an array of tuples */
    var objects2Tuples = function (resolveObj, resolvePolicies) {
      return Object.keys(resolveObj || {}).map(function (token) { return ({ token: token, val: resolveObj[token], deps: undefined, policy: resolvePolicies[token] }); });
    };
    /** fetch DI annotations from a function or ng1-style array */
    var annotate = function (fn) {
      var $injector = services.$injector;
      // ng1 doesn't have an $injector until runtime.
      // If the $injector doesn't exist, use "deferred" literal as a
      // marker indicating they should be annotated when runtime starts
      return fn['$inject'] || ($injector && $injector.annotate(fn, $injector.strictDi)) || "deferred";
    };
    /** true if the object has both `token` and `resolveFn`, and is probably a [[ResolveLiteral]] */
    var isResolveLiteral = function (obj) { return !!(obj.token && obj.resolveFn); };
    /** true if the object looks like a provide literal, or a ng2 Provider */
    var isLikeNg2Provider = function (obj) { return !!((obj.provide || obj.token) && (obj.useValue || obj.useFactory || obj.useExisting || obj.useClass)); };
    /** true if the object looks like a tuple from obj2Tuples */
    var isTupleFromObj = function (obj) { return !!(obj && obj.val && (isString(obj.val) || isArray(obj.val) || isFunction(obj.val))); };
    /** extracts the token from a Provider or provide literal */
    var token = function (p) { return p.provide || p.token; };
    /** Given a literal resolve or provider object, returns a Resolvable */
    var literal2Resolvable = pattern([
      [prop('resolveFn'), function (p) { return new Resolvable(token(p), p.resolveFn, p.deps, p.policy); }],
      [prop('useFactory'), function (p) { return new Resolvable(token(p), p.useFactory, (p.deps || p.dependencies), p.policy); }],
      [prop('useClass'), function (p) { return new Resolvable(token(p), function () { return new p.useClass(); }, [], p.policy); }],
      [prop('useValue'), function (p) { return new Resolvable(token(p), function () { return p.useValue; }, [], p.policy, p.useValue); }],
      [prop('useExisting'), function (p) { return new Resolvable(token(p), identity, [p.useExisting], p.policy); }],
    ]);
    var tuple2Resolvable = pattern([
      [pipe(prop("val"), isString), function (tuple) { return new Resolvable(tuple.token, identity, [tuple.val], tuple.policy); }],
      [pipe(prop("val"), isArray), function (tuple) { return new Resolvable(tuple.token, tail(tuple.val), tuple.val.slice(0, -1), tuple.policy); }],
      [pipe(prop("val"), isFunction), function (tuple) { return new Resolvable(tuple.token, tuple.val, annotate(tuple.val), tuple.policy); }],
    ]);
    var item2Resolvable = pattern([
      [is(Resolvable), function (r) { return r; }],
      [isResolveLiteral, literal2Resolvable],
      [isLikeNg2Provider, literal2Resolvable],
      [isTupleFromObj, tuple2Resolvable],
      [val(true), function (obj) { throw new Error("Invalid resolve value: " + stringify(obj)); }]
    ]);
    // If resolveBlock is already an array, use it as-is.
    // Otherwise, assume it's an object and convert to an Array of tuples
    var decl = state.resolve;
    var items = isArray(decl) ? decl : objects2Tuples(decl, state.resolvePolicy || {});
    return items.map(item2Resolvable);
  }
  /**
   * @internalapi A internal global service
   *
   * StateBuilder is a factory for the internal [[StateObject]] objects.
   *
   * When you register a state with the [[StateRegistry]], you register a plain old javascript object which
   * conforms to the [[StateDeclaration]] interface.  This factory takes that object and builds the corresponding
   * [[StateObject]] object, which has an API and is used internally.
   *
   * Custom properties or API may be added to the internal [[StateObject]] object by registering a decorator function
   * using the [[builder]] method.
   */
  var StateBuilder = /** @class */ (function () {
    function StateBuilder(matcher, urlMatcherFactory) {
      this.matcher = matcher;
      var self = this;
      var root$$1 = function () { return matcher.find(""); };
      var isRoot = function (state) { return state.name === ""; };
      function parentBuilder(state) {
        if (isRoot(state))
          return null;
        return matcher.find(self.parentName(state)) || root$$1();
      }
      this.builders = {
        name: [nameBuilder],
        self: [selfBuilder],
        parent: [parentBuilder],
        data: [dataBuilder],
        // Build a URLMatcher if necessary, either via a relative or absolute URL
        url: [getUrlBuilder(urlMatcherFactory, root$$1)],
        // Keep track of the closest ancestor state that has a URL (i.e. is navigable)
        navigable: [getNavigableBuilder(isRoot)],
        params: [getParamsBuilder(urlMatcherFactory.paramFactory)],
        // Each framework-specific ui-router implementation should define its own `views` builder
        // e.g., src/ng1/statebuilders/views.ts
        views: [],
        // Keep a full path from the root down to this state as this is needed for state activation.
        path: [pathBuilder],
        // Speed up $state.includes() as it's used a lot
        includes: [includesBuilder],
        resolvables: [resolvablesBuilder]
      };
    }
    /**
     * Registers a [[BuilderFunction]] for a specific [[StateObject]] property (e.g., `parent`, `url`, or `path`).
     * More than one BuilderFunction can be registered for a given property.
     *
     * The BuilderFunction(s) will be used to define the property on any subsequently built [[StateObject]] objects.
     *
     * @param name The name of the State property being registered for.
     * @param fn The BuilderFunction which will be used to build the State property
     * @returns a function which deregisters the BuilderFunction
     */
    StateBuilder.prototype.builder = function (name, fn) {
      var builders = this.builders;
      var array = builders[name] || [];
      // Backwards compat: if only one builder exists, return it, else return whole arary.
      if (isString(name) && !isDefined(fn))
        return array.length > 1 ? array : array[0];
      if (!isString(name) || !isFunction(fn))
        return;
      builders[name] = array;
      builders[name].push(fn);
      return function () { return builders[name].splice(builders[name].indexOf(fn, 1)) && null; };
    };
    /**
     * Builds all of the properties on an essentially blank State object, returning a State object which has all its
     * properties and API built.
     *
     * @param state an uninitialized State object
     * @returns the built State object
     */
    StateBuilder.prototype.build = function (state) {
      var _a = this, matcher = _a.matcher, builders = _a.builders;
      var parent = this.parentName(state);
      if (parent && !matcher.find(parent, undefined, false)) {
        return null;
      }
      for (var key in builders) {
        if (!builders.hasOwnProperty(key))
          continue;
        var chain = builders[key].reduce(function (parentFn, step) { return function (_state) { return step(_state, parentFn); }; }, noop$1);
        state[key] = chain(state);
      }
      return state;
    };
    StateBuilder.prototype.parentName = function (state) {
      // name = 'foo.bar.baz.**'
      var name = state.name || "";
      // segments = ['foo', 'bar', 'baz', '.**']
      var segments = name.split('.');
      // segments = ['foo', 'bar', 'baz']
      var lastSegment = segments.pop();
      // segments = ['foo', 'bar'] (ignore .** segment for future states)
      if (lastSegment === '**')
        segments.pop();
      if (segments.length) {
        if (state.parent) {
          throw new Error("States that specify the 'parent:' property should not have a '.' in their name (" + name + ")");
        }
        // 'foo.bar'
        return segments.join(".");
      }
      if (!state.parent)
        return "";
      return isString(state.parent) ? state.parent : state.parent.name;
    };
    StateBuilder.prototype.name = function (state) {
      var name = state.name;
      if (name.indexOf('.') !== -1 || !state.parent)
        return name;
      var parentName = isString(state.parent) ? state.parent : state.parent.name;
      return parentName ? parentName + "." + name : name;
    };
    return StateBuilder;
  }());

  /** @module state */ /** for typedoc */
  var StateMatcher = /** @class */ (function () {
      function StateMatcher(_states) {
        this._states = _states;
      }
      StateMatcher.prototype.isRelative = function (stateName) {
        stateName = stateName || "";
        return stateName.indexOf(".") === 0 || stateName.indexOf("^") === 0;
      };
      StateMatcher.prototype.find = function (stateOrName, base, matchGlob) {
        if (matchGlob === void 0) { matchGlob = true; }
        if (!stateOrName && stateOrName !== "")
          return undefined;
        var isStr = isString(stateOrName);
        var name = isStr ? stateOrName : stateOrName.name;
        if (this.isRelative(name))
          name = this.resolvePath(name, base);
        var state = this._states[name];
        if (state && (isStr || (!isStr && (state === stateOrName || state.self === stateOrName)))) {
          return state;
        }
        else if (isStr && matchGlob) {
          var _states = values(this._states);
          var matches = _states.filter(function (state) {
            return state.__stateObjectCache.nameGlob &&
              state.__stateObjectCache.nameGlob.matches(name);
          });
          if (matches.length > 1) {
            console.log("stateMatcher.find: Found multiple matches for " + name + " using glob: ", matches.map(function (match) { return match.name; }));
          }
          return matches[0];
        }
        return undefined;
      };
      StateMatcher.prototype.resolvePath = function (name, base) {
        if (!base)
          throw new Error("No reference point given for path '" + name + "'");
        var baseState = this.find(base);
        var splitName = name.split("."), i = 0, pathLength = splitName.length, current = baseState;
        for (; i < pathLength; i++) {
          if (splitName[i] === "" && i === 0) {
            current = baseState;
            continue;
          }
          if (splitName[i] === "^") {
            if (!current.parent)
              throw new Error("Path '" + name + "' not valid for state '" + baseState.name + "'");
            current = current.parent;
            continue;
          }
          break;
        }
        var relName = splitName.slice(i).join(".");
        return current.name + (current.name && relName ? "." : "") + relName;
      };
      return StateMatcher;
    }());

  /** @module state */ /** for typedoc */
  /** @internalapi */
  var StateQueueManager = /** @class */ (function () {
    function StateQueueManager($registry, $urlRouter, states, builder, listeners) {
      this.$registry = $registry;
      this.$urlRouter = $urlRouter;
      this.states = states;
      this.builder = builder;
      this.listeners = listeners;
      this.queue = [];
      this.matcher = $registry.matcher;
    }
    /** @internalapi */
    StateQueueManager.prototype.dispose = function () {
      this.queue = [];
    };
    StateQueueManager.prototype.register = function (stateDecl) {
      var queue = this.queue;
      var state = StateObject.create(stateDecl);
      var name = state.name;
      if (!isString(name))
        throw new Error("State must have a valid name");
      if (this.states.hasOwnProperty(name) || inArray(queue.map(prop('name')), name))
        throw new Error("State '" + name + "' is already defined");
      queue.push(state);
      this.flush();
      return state;
    };
    StateQueueManager.prototype.flush = function () {
      var _this = this;
      var _a = this, queue = _a.queue, states = _a.states, builder = _a.builder;
      var registered = [], // states that got registered
        orphans = [], // states that don't yet have a parent registered
        previousQueueLength = {}; // keep track of how long the queue when an orphan was first encountered
      var getState = function (name) {
        return _this.states.hasOwnProperty(name) && _this.states[name];
      };
      while (queue.length > 0) {
        var state = queue.shift();
        var name_1 = state.name;
        var result = builder.build(state);
        var orphanIdx = orphans.indexOf(state);
        if (result) {
          var existingState = getState(name_1);
          if (existingState && existingState.name === name_1) {
            throw new Error("State '" + name_1 + "' is already defined");
          }
          var existingFutureState = getState(name_1 + ".**");
          if (existingFutureState) {
            // Remove future state of the same name
            this.$registry.deregister(existingFutureState);
          }
          states[name_1] = state;
          this.attachRoute(state);
          if (orphanIdx >= 0)
            orphans.splice(orphanIdx, 1);
          registered.push(state);
          continue;
        }
        var prev = previousQueueLength[name_1];
        previousQueueLength[name_1] = queue.length;
        if (orphanIdx >= 0 && prev === queue.length) {
          // Wait until two consecutive iterations where no additional states were dequeued successfully.
          // throw new Error(`Cannot register orphaned state '${name}'`);
          queue.push(state);
          return states;
        }
        else if (orphanIdx < 0) {
          orphans.push(state);
        }
        queue.push(state);
      }
      if (registered.length) {
        this.listeners.forEach(function (listener) { return listener("registered", registered.map(function (s) { return s.self; })); });
      }
      return states;
    };
    StateQueueManager.prototype.attachRoute = function (state) {
      if (state.abstract || !state.url)
        return;
      this.$urlRouter.rule(this.$urlRouter.urlRuleFactory.create(state));
    };
    return StateQueueManager;
  }());

  /**
   * @coreapi
   * @module state
   */ /** for typedoc */
  var StateRegistry = /** @class */ (function () {
      /** @internalapi */
      function StateRegistry(_router) {
        this._router = _router;
        this.states = {};
        this.listeners = [];
        this.matcher = new StateMatcher(this.states);
        this.builder = new StateBuilder(this.matcher, _router.urlMatcherFactory);
        this.stateQueue = new StateQueueManager(this, _router.urlRouter, this.states, this.builder, this.listeners);
        this._registerRoot();
      }
      /** @internalapi */
      StateRegistry.prototype._registerRoot = function () {
        var rootStateDef = {
          name: '',
          url: '^',
          views: null,
          params: {
            '#': { value: null, type: 'hash', dynamic: true }
          },
          abstract: true
        };
        var _root = this._root = this.stateQueue.register(rootStateDef);
        _root.navigable = null;
      };
      /** @internalapi */
      StateRegistry.prototype.dispose = function () {
        var _this = this;
        this.stateQueue.dispose();
        this.listeners = [];
        this.get().forEach(function (state) { return _this.get(state) && _this.deregister(state); });
      };
      /**
       * Listen for a State Registry events
       *
       * Adds a callback that is invoked when states are registered or deregistered with the StateRegistry.
       *
       * #### Example:
       * ```js
       * let allStates = registry.get();
       *
       * // Later, invoke deregisterFn() to remove the listener
       * let deregisterFn = registry.onStatesChanged((event, states) => {
     *   switch(event) {
     *     case: 'registered':
     *       states.forEach(state => allStates.push(state));
     *       break;
     *     case: 'deregistered':
     *       states.forEach(state => {
     *         let idx = allStates.indexOf(state);
     *         if (idx !== -1) allStates.splice(idx, 1);
     *       });
     *       break;
     *   }
     * });
       * ```
       *
       * @param listener a callback function invoked when the registered states changes.
       *        The function receives two parameters, `event` and `state`.
       *        See [[StateRegistryListener]]
       * @return a function that deregisters the listener
       */
      StateRegistry.prototype.onStatesChanged = function (listener) {
        this.listeners.push(listener);
        return function deregisterListener() {
          removeFrom(this.listeners)(listener);
        }.bind(this);
      };
      /**
       * Gets the implicit root state
       *
       * Gets the root of the state tree.
       * The root state is implicitly created by UI-Router.
       * Note: this returns the internal [[StateObject]] representation, not a [[StateDeclaration]]
       *
       * @return the root [[StateObject]]
       */
      StateRegistry.prototype.root = function () {
        return this._root;
      };
      /**
       * Adds a state to the registry
       *
       * Registers a [[StateDeclaration]] or queues it for registration.
       *
       * Note: a state will be queued if the state's parent isn't yet registered.
       *
       * @param stateDefinition the definition of the state to register.
       * @returns the internal [[StateObject]] object.
       *          If the state was successfully registered, then the object is fully built (See: [[StateBuilder]]).
       *          If the state was only queued, then the object is not fully built.
       */
      StateRegistry.prototype.register = function (stateDefinition) {
        return this.stateQueue.register(stateDefinition);
      };
      /** @hidden */
      StateRegistry.prototype._deregisterTree = function (state) {
        var _this = this;
        var all$$1 = this.get().map(function (s) { return s.$$state(); });
        var getChildren = function (states) {
          var children = all$$1.filter(function (s) { return states.indexOf(s.parent) !== -1; });
          return children.length === 0 ? children : children.concat(getChildren(children));
        };
        var children = getChildren([state]);
        var deregistered = [state].concat(children).reverse();
        deregistered.forEach(function (state) {
          var $ur = _this._router.urlRouter;
          // Remove URL rule
          $ur.rules().filter(propEq("state", state)).forEach($ur.removeRule.bind($ur));
          // Remove state from registry
          delete _this.states[state.name];
        });
        return deregistered;
      };
      /**
       * Removes a state from the registry
       *
       * This removes a state from the registry.
       * If the state has children, they are are also removed from the registry.
       *
       * @param stateOrName the state's name or object representation
       * @returns {StateObject[]} a list of removed states
       */
      StateRegistry.prototype.deregister = function (stateOrName) {
        var _state = this.get(stateOrName);
        if (!_state)
          throw new Error("Can't deregister state; not found: " + stateOrName);
        var deregisteredStates = this._deregisterTree(_state.$$state());
        this.listeners.forEach(function (listener) { return listener("deregistered", deregisteredStates.map(function (s) { return s.self; })); });
        return deregisteredStates;
      };
      StateRegistry.prototype.get = function (stateOrName, base) {
        var _this = this;
        if (arguments.length === 0)
          return Object.keys(this.states).map(function (name) { return _this.states[name].self; });
        var found = this.matcher.find(stateOrName, base);
        return found && found.self || null;
      };
      StateRegistry.prototype.decorator = function (name, func) {
        return this.builder.builder(name, func);
      };
      return StateRegistry;
    }());

  /**
   * @coreapi
   * @module url
   */
  /** for typedoc */
  /** @hidden */
  function quoteRegExp(string, param) {
    var surroundPattern = ['', ''], result = string.replace(/[\\\[\]\^$*+?.()|{}]/g, "\\$&");
    if (!param)
      return result;
    switch (param.squash) {
      case false:
        surroundPattern = ['(', ')' + (param.isOptional ? '?' : '')];
        break;
      case true:
        result = result.replace(/\/$/, '');
        surroundPattern = ['(?:\/(', ')|\/)?'];
        break;
      default:
        surroundPattern = ["(" + param.squash + "|", ')?'];
        break;
    }
    return result + surroundPattern[0] + param.type.pattern.source + surroundPattern[1];
  }
  /** @hidden */
  var memoizeTo = function (obj, prop$$1, fn) {
    return obj[prop$$1] = obj[prop$$1] || fn();
  };
  /** @hidden */
  var splitOnSlash = splitOnDelim('/');
  /**
   * Matches URLs against patterns.
   *
   * Matches URLs against patterns and extracts named parameters from the path or the search
   * part of the URL.
   *
   * A URL pattern consists of a path pattern, optionally followed by '?' and a list of search (query)
   * parameters. Multiple search parameter names are separated by '&'. Search parameters
   * do not influence whether or not a URL is matched, but their values are passed through into
   * the matched parameters returned by [[UrlMatcher.exec]].
   *
   * - *Path parameters* are defined using curly brace placeholders (`/somepath/{param}`)
   * or colon placeholders (`/somePath/:param`).
   *
   * - *A parameter RegExp* may be defined for a param after a colon
   * (`/somePath/{param:[a-zA-Z0-9]+}`) in a curly brace placeholder.
   * The regexp must match for the url to be matched.
   * Should the regexp itself contain curly braces, they must be in matched pairs or escaped with a backslash.
   *
   * Note: a RegExp parameter will encode its value using either [[ParamTypes.path]] or [[ParamTypes.query]].
   *
   * - *Custom parameter types* may also be specified after a colon (`/somePath/{param:int}`) in curly brace parameters.
   *   See [[UrlMatcherFactory.type]] for more information.
   *
   * - *Catch-all parameters* are defined using an asterisk placeholder (`/somepath/*catchallparam`).
   *   A catch-all * parameter value will contain the remainder of the URL.
   *
   * ---
   *
   * Parameter names may contain only word characters (latin letters, digits, and underscore) and
   * must be unique within the pattern (across both path and search parameters).
   * A path parameter matches any number of characters other than '/'. For catch-all
   * placeholders the path parameter matches any number of characters.
   *
   * Examples:
   *
   * * `'/hello/'` - Matches only if the path is exactly '/hello/'. There is no special treatment for
   *   trailing slashes, and patterns have to match the entire path, not just a prefix.
   * * `'/user/:id'` - Matches '/user/bob' or '/user/1234!!!' or even '/user/' but not '/user' or
   *   '/user/bob/details'. The second path segment will be captured as the parameter 'id'.
   * * `'/user/{id}'` - Same as the previous example, but using curly brace syntax.
   * * `'/user/{id:[^/]*}'` - Same as the previous example.
   * * `'/user/{id:[0-9a-fA-F]{1,8}}'` - Similar to the previous example, but only matches if the id
   *   parameter consists of 1 to 8 hex digits.
   * * `'/files/{path:.*}'` - Matches any URL starting with '/files/' and captures the rest of the
   *   path into the parameter 'path'.
   * * `'/files/*path'` - ditto.
   * * `'/calendar/{start:date}'` - Matches "/calendar/2014-11-12" (because the pattern defined
   *   in the built-in  `date` ParamType matches `2014-11-12`) and provides a Date object in $stateParams.start
   *
   */
  var UrlMatcher = /** @class */ (function () {
    /**
     * @param pattern The pattern to compile into a matcher.
     * @param paramTypes The [[ParamTypes]] registry
     * @param config  A configuration object
     * - `caseInsensitive` - `true` if URL matching should be case insensitive, otherwise `false`, the default value (for backward compatibility) is `false`.
     * - `strict` - `false` if matching against a URL with a trailing slash should be treated as equivalent to a URL without a trailing slash, the default value is `true`.
     */
    function UrlMatcher(pattern$$1, paramTypes, paramFactory, config) {
      var _this = this;
      this.config = config;
      /** @hidden */
      this._cache = { path: [this] };
      /** @hidden */
      this._children = [];
      /** @hidden */
      this._params = [];
      /** @hidden */
      this._segments = [];
      /** @hidden */
      this._compiled = [];
      this.pattern = pattern$$1;
      this.config = defaults(this.config, {
        params: {},
        strict: true,
        caseInsensitive: false,
        paramMap: identity
      });
      // Find all placeholders and create a compiled pattern, using either classic or curly syntax:
      //   '*' name
      //   ':' name
      //   '{' name '}'
      //   '{' name ':' regexp '}'
      // The regular expression is somewhat complicated due to the need to allow curly braces
      // inside the regular expression. The placeholder regexp breaks down as follows:
      //    ([:*])([\w\[\]]+)              - classic placeholder ($1 / $2) (search version has - for snake-case)
      //    \{([\w\[\]]+)(?:\:\s*( ... ))?\}  - curly brace placeholder ($3) with optional regexp/type ... ($4) (search version has - for snake-case
      //    (?: ... | ... | ... )+         - the regexp consists of any number of atoms, an atom being either
      //    [^{}\\]+                       - anything other than curly braces or backslash
      //    \\.                            - a backslash escape
      //    \{(?:[^{}\\]+|\\.)*\}          - a matched set of curly braces containing other atoms
      var placeholder = /([:*])([\w\[\]]+)|\{([\w\[\]]+)(?:\:\s*((?:[^{}\\]+|\\.|\{(?:[^{}\\]+|\\.)*\})+))?\}/g, searchPlaceholder = /([:]?)([\w\[\].-]+)|\{([\w\[\].-]+)(?:\:\s*((?:[^{}\\]+|\\.|\{(?:[^{}\\]+|\\.)*\})+))?\}/g, last = 0, m, patterns = [];
      var checkParamErrors = function (id) {
        if (!UrlMatcher.nameValidator.test(id))
          throw new Error("Invalid parameter name '" + id + "' in pattern '" + pattern$$1 + "'");
        if (find(_this._params, propEq('id', id)))
          throw new Error("Duplicate parameter name '" + id + "' in pattern '" + pattern$$1 + "'");
      };
      // Split into static segments separated by path parameter placeholders.
      // The number of segments is always 1 more than the number of parameters.
      var matchDetails = function (m, isSearch) {
        // IE[78] returns '' for unmatched groups instead of null
        var id = m[2] || m[3];
        var regexp = isSearch ? m[4] : m[4] || (m[1] === '*' ? '[\\s\\S]*' : null);
        var makeRegexpType = function (regexp) { return inherit(paramTypes.type(isSearch ? "query" : "path"), {
          pattern: new RegExp(regexp, _this.config.caseInsensitive ? 'i' : undefined)
        }); };
        return {
          id: id,
          regexp: regexp,
          cfg: _this.config.params[id],
          segment: pattern$$1.substring(last, m.index),
          type: !regexp ? null : paramTypes.type(regexp) || makeRegexpType(regexp)
        };
      };
      var p, segment;
      while ((m = placeholder.exec(pattern$$1))) {
        p = matchDetails(m, false);
        if (p.segment.indexOf('?') >= 0)
          break; // we're into the search part
        checkParamErrors(p.id);
        this._params.push(paramFactory.fromPath(p.id, p.type, this.config.paramMap(p.cfg, false)));
        this._segments.push(p.segment);
        patterns.push([p.segment, tail(this._params)]);
        last = placeholder.lastIndex;
      }
      segment = pattern$$1.substring(last);
      // Find any search parameter names and remove them from the last segment
      var i = segment.indexOf('?');
      if (i >= 0) {
        var search = segment.substring(i);
        segment = segment.substring(0, i);
        if (search.length > 0) {
          last = 0;
          while ((m = searchPlaceholder.exec(search))) {
            p = matchDetails(m, true);
            checkParamErrors(p.id);
            this._params.push(paramFactory.fromSearch(p.id, p.type, this.config.paramMap(p.cfg, true)));
            last = placeholder.lastIndex;
            // check if ?&
          }
        }
      }
      this._segments.push(segment);
      this._compiled = patterns.map(function (pattern$$1) { return quoteRegExp.apply(null, pattern$$1); }).concat(quoteRegExp(segment));
    }
    /**
     * Creates a new concatenated UrlMatcher
     *
     * Builds a new UrlMatcher by appending another UrlMatcher to this one.
     *
     * @param url A `UrlMatcher` instance to append as a child of the current `UrlMatcher`.
     */
    UrlMatcher.prototype.append = function (url) {
      this._children.push(url);
      url._cache = {
        path: this._cache.path.concat(url),
        parent: this,
        pattern: null,
      };
      return url;
    };
    /** @hidden */
    UrlMatcher.prototype.isRoot = function () {
      return this._cache.path[0] === this;
    };
    /** Returns the input pattern string */
    UrlMatcher.prototype.toString = function () {
      return this.pattern;
    };
    /**
     * Tests the specified url/path against this matcher.
     *
     * Tests if the given url matches this matcher's pattern, and returns an object containing the captured
     * parameter values.  Returns null if the path does not match.
     *
     * The returned object contains the values
     * of any search parameters that are mentioned in the pattern, but their value may be null if
     * they are not present in `search`. This means that search parameters are always treated
     * as optional.
     *
     * #### Example:
     * ```js
     * new UrlMatcher('/user/{id}?q&r').exec('/user/bob', {
     *   x: '1', q: 'hello'
     * });
     * // returns { id: 'bob', q: 'hello', r: null }
     * ```
     *
     * @param path    The URL path to match, e.g. `$location.path()`.
     * @param search  URL search parameters, e.g. `$location.search()`.
     * @param hash    URL hash e.g. `$location.hash()`.
     * @param options
     *
     * @returns The captured parameter values.
     */
    UrlMatcher.prototype.exec = function (path, search, hash, options) {
      var _this = this;
      if (search === void 0) { search = {}; }
      if (options === void 0) { options = {}; }
      var match = memoizeTo(this._cache, 'pattern', function () {
        return new RegExp([
          '^',
          unnest(_this._cache.path.map(prop('_compiled'))).join(''),
          _this.config.strict === false ? '\/?' : '',
          '$'
        ].join(''), _this.config.caseInsensitive ? 'i' : undefined);
      }).exec(path);
      if (!match)
        return null;
      //options = defaults(options, { isolate: false });
      var allParams = this.parameters(), pathParams = allParams.filter(function (param) { return !param.isSearch(); }), searchParams = allParams.filter(function (param) { return param.isSearch(); }), nPathSegments = this._cache.path.map(function (urlm) { return urlm._segments.length - 1; }).reduce(function (a, x) { return a + x; }), values$$1 = {};
      if (nPathSegments !== match.length - 1)
        throw new Error("Unbalanced capture group in route '" + this.pattern + "'");
      function decodePathArray(string) {
        var reverseString = function (str) { return str.split("").reverse().join(""); };
        var unquoteDashes = function (str) { return str.replace(/\\-/g, "-"); };
        var split = reverseString(string).split(/-(?!\\)/);
        var allReversed = map(split, reverseString);
        return map(allReversed, unquoteDashes).reverse();
      }
      for (var i = 0; i < nPathSegments; i++) {
        var param = pathParams[i];
        var value = match[i + 1];
        // if the param value matches a pre-replace pair, replace the value before decoding.
        for (var j = 0; j < param.replace.length; j++) {
          if (param.replace[j].from === value)
            value = param.replace[j].to;
        }
        if (value && param.array === true)
          value = decodePathArray(value);
        if (isDefined(value))
          value = param.type.decode(value);
        values$$1[param.id] = param.value(value);
      }
      searchParams.forEach(function (param) {
        var value = search[param.id];
        for (var j = 0; j < param.replace.length; j++) {
          if (param.replace[j].from === value)
            value = param.replace[j].to;
        }
        if (isDefined(value))
          value = param.type.decode(value);
        values$$1[param.id] = param.value(value);
      });
      if (hash)
        values$$1["#"] = hash;
      return values$$1;
    };
    /**
     * @hidden
     * Returns all the [[Param]] objects of all path and search parameters of this pattern in order of appearance.
     *
     * @returns {Array.<Param>}  An array of [[Param]] objects. Must be treated as read-only. If the
     *    pattern has no parameters, an empty array is returned.
     */
    UrlMatcher.prototype.parameters = function (opts) {
      if (opts === void 0) { opts = {}; }
      if (opts.inherit === false)
        return this._params;
      return unnest(this._cache.path.map(function (matcher) { return matcher._params; }));
    };
    /**
     * @hidden
     * Returns a single parameter from this UrlMatcher by id
     *
     * @param id
     * @param opts
     * @returns {T|Param|any|boolean|UrlMatcher|null}
     */
    UrlMatcher.prototype.parameter = function (id, opts) {
      var _this = this;
      if (opts === void 0) { opts = {}; }
      var findParam = function () {
        for (var _i = 0, _a = _this._params; _i < _a.length; _i++) {
          var param = _a[_i];
          if (param.id === id)
            return param;
        }
      };
      var parent = this._cache.parent;
      return findParam() || (opts.inherit !== false && parent && parent.parameter(id, opts)) || null;
    };
    /**
     * Validates the input parameter values against this UrlMatcher
     *
     * Checks an object hash of parameters to validate their correctness according to the parameter
     * types of this `UrlMatcher`.
     *
     * @param params The object hash of parameters to validate.
     * @returns Returns `true` if `params` validates, otherwise `false`.
     */
    UrlMatcher.prototype.validates = function (params) {
      var validParamVal = function (param, val$$1) {
        return !param || param.validates(val$$1);
      };
      params = params || {};
      // I'm not sure why this checks only the param keys passed in, and not all the params known to the matcher
      var paramSchema = this.parameters().filter(function (paramDef) { return params.hasOwnProperty(paramDef.id); });
      return paramSchema.map(function (paramDef) { return validParamVal(paramDef, params[paramDef.id]); }).reduce(allTrueR, true);
    };
    /**
     * Given a set of parameter values, creates a URL from this UrlMatcher.
     *
     * Creates a URL that matches this pattern by substituting the specified values
     * for the path and search parameters.
     *
     * #### Example:
     * ```js
     * new UrlMatcher('/user/{id}?q').format({ id:'bob', q:'yes' });
     * // returns '/user/bob?q=yes'
     * ```
     *
     * @param values  the values to substitute for the parameters in this pattern.
     * @returns the formatted URL (path and optionally search part).
     */
    UrlMatcher.prototype.format = function (values$$1) {
      if (values$$1 === void 0) { values$$1 = {}; }
      // Build the full path of UrlMatchers (including all parent UrlMatchers)
      var urlMatchers = this._cache.path;
      // Extract all the static segments and Params (processed as ParamDetails)
      // into an ordered array
      var pathSegmentsAndParams = urlMatchers.map(UrlMatcher.pathSegmentsAndParams)
        .reduce(unnestR, [])
        .map(function (x) { return isString(x) ? x : getDetails(x); });
      // Extract the query params into a separate array
      var queryParams = urlMatchers.map(UrlMatcher.queryParams)
        .reduce(unnestR, [])
        .map(getDetails);
      var isInvalid = function (param) { return param.isValid === false; };
      if (pathSegmentsAndParams.concat(queryParams).filter(isInvalid).length) {
        return null;
      }
      /**
       * Given a Param, applies the parameter value, then returns detailed information about it
       */
      function getDetails(param) {
        // Normalize to typed value
        var value = param.value(values$$1[param.id]);
        var isValid = param.validates(value);
        var isDefaultValue = param.isDefaultValue(value);
        // Check if we're in squash mode for the parameter
        var squash = isDefaultValue ? param.squash : false;
        // Allow the Parameter's Type to encode the value
        var encoded = param.type.encode(value);
        return { param: param, value: value, isValid: isValid, isDefaultValue: isDefaultValue, squash: squash, encoded: encoded };
      }
      // Build up the path-portion from the list of static segments and parameters
      var pathString = pathSegmentsAndParams.reduce(function (acc, x) {
        // The element is a static segment (a raw string); just append it
        if (isString(x))
          return acc + x;
        // Otherwise, it's a ParamDetails.
        var squash = x.squash, encoded = x.encoded, param = x.param;
        // If squash is === true, try to remove a slash from the path
        if (squash === true)
          return (acc.match(/\/$/)) ? acc.slice(0, -1) : acc;
        // If squash is a string, use the string for the param value
        if (isString(squash))
          return acc + squash;
        if (squash !== false)
          return acc; // ?
        if (encoded == null)
          return acc;
        // If this parameter value is an array, encode the value using encodeDashes
        if (isArray(encoded))
          return acc + map(encoded, UrlMatcher.encodeDashes).join("-");
        // If the parameter type is "raw", then do not encodeURIComponent
        if (param.raw)
          return acc + encoded;
        // Encode the value
        return acc + encodeURIComponent(encoded);
      }, "");
      // Build the query string by applying parameter values (array or regular)
      // then mapping to key=value, then flattening and joining using "&"
      var queryString = queryParams.map(function (paramDetails) {
        var param = paramDetails.param, squash = paramDetails.squash, encoded = paramDetails.encoded, isDefaultValue = paramDetails.isDefaultValue;
        if (encoded == null || (isDefaultValue && squash !== false))
          return;
        if (!isArray(encoded))
          encoded = [encoded];
        if (encoded.length === 0)
          return;
        if (!param.raw)
          encoded = map(encoded, encodeURIComponent);
        return encoded.map(function (val$$1) { return param.id + "=" + val$$1; });
      }).filter(identity).reduce(unnestR, []).join("&");
      // Concat the pathstring with the queryString (if exists) and the hashString (if exists)
      return pathString + (queryString ? "?" + queryString : "") + (values$$1["#"] ? "#" + values$$1["#"] : "");
    };
    /** @hidden */
    UrlMatcher.encodeDashes = function (str) {
      return encodeURIComponent(str).replace(/-/g, function (c) { return "%5C%" + c.charCodeAt(0).toString(16).toUpperCase(); });
    };
    /** @hidden Given a matcher, return an array with the matcher's path segments and path params, in order */
    UrlMatcher.pathSegmentsAndParams = function (matcher) {
      var staticSegments = matcher._segments;
      var pathParams = matcher._params.filter(function (p) { return p.location === exports.DefType.PATH; });
      return arrayTuples(staticSegments, pathParams.concat(undefined))
        .reduce(unnestR, [])
        .filter(function (x) { return x !== "" && isDefined(x); });
    };
    /** @hidden Given a matcher, return an array with the matcher's query params */
    UrlMatcher.queryParams = function (matcher) {
      return matcher._params.filter(function (p) { return p.location === exports.DefType.SEARCH; });
    };
    /**
     * Compare two UrlMatchers
     *
     * This comparison function converts a UrlMatcher into static and dynamic path segments.
     * Each static path segment is a static string between a path separator (slash character).
     * Each dynamic segment is a path parameter.
     *
     * The comparison function sorts static segments before dynamic ones.
     */
    UrlMatcher.compare = function (a, b) {
      /**
       * Turn a UrlMatcher and all its parent matchers into an array
       * of slash literals '/', string literals, and Param objects
       *
       * This example matcher matches strings like "/foo/:param/tail":
       * var matcher = $umf.compile("/foo").append($umf.compile("/:param")).append($umf.compile("/")).append($umf.compile("tail"));
       * var result = segments(matcher); // [ '/', 'foo', '/', Param, '/', 'tail' ]
       *
       * Caches the result as `matcher._cache.segments`
       */
      var segments = function (matcher) {
        return matcher._cache.segments = matcher._cache.segments ||
          matcher._cache.path.map(UrlMatcher.pathSegmentsAndParams)
            .reduce(unnestR, [])
            .reduce(joinNeighborsR, [])
            .map(function (x) { return isString(x) ? splitOnSlash(x) : x; })
            .reduce(unnestR, []);
      };
      /**
       * Gets the sort weight for each segment of a UrlMatcher
       *
       * Caches the result as `matcher._cache.weights`
       */
      var weights = function (matcher) {
        return matcher._cache.weights = matcher._cache.weights ||
          segments(matcher).map(function (segment) {
            // Sort slashes first, then static strings, the Params
            if (segment === '/')
              return 1;
            if (isString(segment))
              return 2;
            if (segment instanceof Param)
              return 3;
          });
      };
      /**
       * Pads shorter array in-place (mutates)
       */
      var padArrays = function (l, r, padVal) {
        var len = Math.max(l.length, r.length);
        while (l.length < len)
          l.push(padVal);
        while (r.length < len)
          r.push(padVal);
      };
      var weightsA = weights(a), weightsB = weights(b);
      padArrays(weightsA, weightsB, 0);
      var cmp, i, pairs$$1 = arrayTuples(weightsA, weightsB);
      for (i = 0; i < pairs$$1.length; i++) {
        cmp = pairs$$1[i][0] - pairs$$1[i][1];
        if (cmp !== 0)
          return cmp;
      }
      return 0;
    };
    /** @hidden */
    UrlMatcher.nameValidator = /^\w+([-.]+\w+)*(?:\[\])?$/;
    return UrlMatcher;
  }());

  /**
   * @internalapi
   * @module url
   */ /** for typedoc */
  /**
   * Factory for [[UrlMatcher]] instances.
   *
   * The factory is available to ng1 services as
   * `$urlMatcherFactory` or ng1 providers as `$urlMatcherFactoryProvider`.
   */
  var UrlMatcherFactory = /** @class */ (function () {
    function UrlMatcherFactory() {
      var _this = this;
      /** @hidden */ this.paramTypes = new ParamTypes();
      /** @hidden */ this._isCaseInsensitive = false;
      /** @hidden */ this._isStrictMode = true;
      /** @hidden */ this._defaultSquashPolicy = false;
      /** @hidden */
      this._getConfig = function (config) {
        return extend({ strict: _this._isStrictMode, caseInsensitive: _this._isCaseInsensitive }, config);
      };
      /** @internalapi Creates a new [[Param]] for a given location (DefType) */
      this.paramFactory = {
        /** Creates a new [[Param]] from a CONFIG block */
        fromConfig: function (id, type, config) {
          return new Param(id, type, config, exports.DefType.CONFIG, _this);
        },
        /** Creates a new [[Param]] from a url PATH */
        fromPath: function (id, type, config) {
          return new Param(id, type, config, exports.DefType.PATH, _this);
        },
        /** Creates a new [[Param]] from a url SEARCH */
        fromSearch: function (id, type, config) {
          return new Param(id, type, config, exports.DefType.SEARCH, _this);
        },
      };
      extend(this, { UrlMatcher: UrlMatcher, Param: Param });
    }
    /** @inheritdoc */
    UrlMatcherFactory.prototype.caseInsensitive = function (value) {
      return this._isCaseInsensitive = isDefined(value) ? value : this._isCaseInsensitive;
    };
    /** @inheritdoc */
    UrlMatcherFactory.prototype.strictMode = function (value) {
      return this._isStrictMode = isDefined(value) ? value : this._isStrictMode;
    };
    /** @inheritdoc */
    UrlMatcherFactory.prototype.defaultSquashPolicy = function (value) {
      if (isDefined(value) && value !== true && value !== false && !isString(value))
        throw new Error("Invalid squash policy: " + value + ". Valid policies: false, true, arbitrary-string");
      return this._defaultSquashPolicy = isDefined(value) ? value : this._defaultSquashPolicy;
    };
    /**
     * Creates a [[UrlMatcher]] for the specified pattern.
     *
     * @param pattern  The URL pattern.
     * @param config  The config object hash.
     * @returns The UrlMatcher.
     */
    UrlMatcherFactory.prototype.compile = function (pattern, config) {
      return new UrlMatcher(pattern, this.paramTypes, this.paramFactory, this._getConfig(config));
    };
    /**
     * Returns true if the specified object is a [[UrlMatcher]], or false otherwise.
     *
     * @param object  The object to perform the type check against.
     * @returns `true` if the object matches the `UrlMatcher` interface, by
     *          implementing all the same methods.
     */
    UrlMatcherFactory.prototype.isMatcher = function (object) {
      // TODO: typeof?
      if (!isObject(object))
        return false;
      var result = true;
      forEach(UrlMatcher.prototype, function (val, name) {
        if (isFunction(val))
          result = result && (isDefined(object[name]) && isFunction(object[name]));
      });
      return result;
    };

    /**
     * Creates and registers a custom [[ParamType]] object
     *
     * A [[ParamType]] can be used to generate URLs with typed parameters.
     *
     * @param name  The type name.
     * @param definition The type definition. See [[ParamTypeDefinition]] for information on the values accepted.
     * @param definitionFn A function that is injected before the app runtime starts.
     *        The result of this function should be a [[ParamTypeDefinition]].
     *        The result is merged into the existing `definition`.
     *        See [[ParamType]] for information on the values accepted.
     *
     * @returns - if a type was registered: the [[UrlMatcherFactory]]
     *   - if only the `name` parameter was specified: the currently registered [[ParamType]] object, or undefined
     *
     * Note: Register custom types *before using them* in a state definition.
     *
     * See [[ParamTypeDefinition]] for examples
     */
    UrlMatcherFactory.prototype.type = function (name, definition, definitionFn) {
      var type = this.paramTypes.type(name, definition, definitionFn);
      return !isDefined(definition) ? type : this;
    };

    /** @hidden */
    UrlMatcherFactory.prototype.$get = function () {
      this.paramTypes.enqueue = false;
      this.paramTypes._flushTypeQueue();
      return this;
    };

    /** @internalapi */
    UrlMatcherFactory.prototype.dispose = function () {
      this.paramTypes.dispose();
    };
    return UrlMatcherFactory;
  }());

  /**
   * @coreapi
   * @module url
   */ /** */
  /**
   * Creates a [[UrlRule]]
   *
   * Creates a [[UrlRule]] from a:
   *
   * - `string`
   * - [[UrlMatcher]]
   * - `RegExp`
   * - [[StateObject]]
   * @internalapi
   */
  var UrlRuleFactory = /** @class */ (function () {
    function UrlRuleFactory(router) {
      this.router = router;
    }
    UrlRuleFactory.prototype.compile = function (str) {
      return this.router.urlMatcherFactory.compile(str);
    };
    UrlRuleFactory.prototype.create = function (what, handler) {
      var _this = this;
      var makeRule = pattern([
        [isString, function (_what) { return makeRule(_this.compile(_what)); }],
        [is(UrlMatcher), function (_what) { return _this.fromUrlMatcher(_what, handler); }],
        [isState, function (_what) { return _this.fromState(_what, _this.router); }],
        [is(RegExp), function (_what) { return _this.fromRegExp(_what, handler); }],
        [isFunction, function (_what) { return new BaseUrlRule(_what, handler); }],
      ]);
      var rule = makeRule(what);
      if (!rule)
        throw new Error("invalid 'what' in when()");
      return rule;
    };
    /**
     * A UrlRule which matches based on a UrlMatcher
     *
     * The `handler` may be either a `string`, a [[UrlRuleHandlerFn]] or another [[UrlMatcher]]
     *
     * ## Handler as a function
     *
     * If `handler` is a function, the function is invoked with:
     *
     * - matched parameter values ([[RawParams]] from [[UrlMatcher.exec]])
     * - url: the current Url ([[UrlParts]])
     * - router: the router object ([[UIRouter]])
     *
     * #### Example:
     * ```js
     * var urlMatcher = $umf.compile("/foo/:fooId/:barId");
     * var rule = factory.fromUrlMatcher(urlMatcher, match => "/home/" + match.fooId + "/" + match.barId);
     * var match = rule.match('/foo/123/456'); // results in { fooId: '123', barId: '456' }
     * var result = rule.handler(match); // '/home/123/456'
     * ```
     *
     * ## Handler as UrlMatcher
     *
     * If `handler` is a UrlMatcher, the handler matcher is used to create the new url.
     * The `handler` UrlMatcher is formatted using the matched param from the first matcher.
     * The url is replaced with the result.
     *
     * #### Example:
     * ```js
     * var urlMatcher = $umf.compile("/foo/:fooId/:barId");
     * var handler = $umf.compile("/home/:fooId/:barId");
     * var rule = factory.fromUrlMatcher(urlMatcher, handler);
     * var match = rule.match('/foo/123/456'); // results in { fooId: '123', barId: '456' }
     * var result = rule.handler(match); // '/home/123/456'
     * ```
     */
    UrlRuleFactory.prototype.fromUrlMatcher = function (urlMatcher, handler) {
      var _handler = handler;
      if (isString(handler))
        handler = this.router.urlMatcherFactory.compile(handler);
      if (is(UrlMatcher)(handler))
        _handler = function (match) { return handler.format(match); };
      function match(url) {
        var match = urlMatcher.exec(url.path, url.search, url.hash);
        return urlMatcher.validates(match) && match;
      }
      // Prioritize URLs, lowest to highest:
      // - Some optional URL parameters, but none matched
      // - No optional parameters in URL
      // - Some optional parameters, some matched
      // - Some optional parameters, all matched
      function matchPriority(params) {
        var optional = urlMatcher.parameters().filter(function (param) { return param.isOptional; });
        if (!optional.length)
          return 0.000001;
        var matched = optional.filter(function (param) { return params[param.id]; });
        return matched.length / optional.length;
      }
      var details = { urlMatcher: urlMatcher, matchPriority: matchPriority, type: "URLMATCHER" };
      return extend(new BaseUrlRule(match, _handler), details);
    };
    /**
     * A UrlRule which matches a state by its url
     *
     * #### Example:
     * ```js
     * var rule = factory.fromState($state.get('foo'), router);
     * var match = rule.match('/foo/123/456'); // results in { fooId: '123', barId: '456' }
     * var result = rule.handler(match);
     * // Starts a transition to 'foo' with params: { fooId: '123', barId: '456' }
     * ```
     */
    UrlRuleFactory.prototype.fromState = function (state, router) {
      /**
       * Handles match by transitioning to matched state
       *
       * First checks if the router should start a new transition.
       * A new transition is not required if the current state's URL
       * and the new URL are already identical
       */
      var handler = function (match) {
        var $state = router.stateService;
        var globals = router.globals;
        if ($state.href(state, match) !== $state.href(globals.current, globals.params)) {
          $state.transitionTo(state, match, { inherit: true, source: "url" });
        }
      };
      var details = { state: state, type: "STATE" };
      return extend(this.fromUrlMatcher(state.url, handler), details);
    };
    /**
     * A UrlRule which matches based on a regular expression
     *
     * The `handler` may be either a [[UrlRuleHandlerFn]] or a string.
     *
     * ## Handler as a function
     *
     * If `handler` is a function, the function is invoked with:
     *
     * - regexp match array (from `regexp`)
     * - url: the current Url ([[UrlParts]])
     * - router: the router object ([[UIRouter]])
     *
     * #### Example:
     * ```js
     * var rule = factory.fromRegExp(/^\/foo\/(bar|baz)$/, match => "/home/" + match[1])
     * var match = rule.match('/foo/bar'); // results in [ '/foo/bar', 'bar' ]
     * var result = rule.handler(match); // '/home/bar'
     * ```
     *
     * ## Handler as string
     *
     * If `handler` is a string, the url is *replaced by the string* when the Rule is invoked.
     * The string is first interpolated using `string.replace()` style pattern.
     *
     * #### Example:
     * ```js
     * var rule = factory.fromRegExp(/^\/foo\/(bar|baz)$/, "/home/$1")
     * var match = rule.match('/foo/bar'); // results in [ '/foo/bar', 'bar' ]
     * var result = rule.handler(match); // '/home/bar'
     * ```
     */
    UrlRuleFactory.prototype.fromRegExp = function (regexp, handler) {
      if (regexp.global || regexp.sticky)
        throw new Error("Rule RegExp must not be global or sticky");
      /**
       * If handler is a string, the url will be replaced by the string.
       * If the string has any String.replace() style variables in it (like `$2`),
       * they will be replaced by the captures from [[match]]
       */
      var redirectUrlTo = function (match) {
        // Interpolates matched values into $1 $2, etc using a String.replace()-style pattern
        return handler.replace(/\$(\$|\d{1,2})/, function (m, what) {
          return match[what === '$' ? 0 : Number(what)];
        });
      };
      var _handler = isString(handler) ? redirectUrlTo : handler;
      var match = function (url) {
        return regexp.exec(url.path);
      };
      var details = { regexp: regexp, type: "REGEXP" };
      return extend(new BaseUrlRule(match, _handler), details);
    };
    UrlRuleFactory.isUrlRule = function (obj) {
      return obj && ['type', 'match', 'handler'].every(function (key) { return isDefined(obj[key]); });
    };
    return UrlRuleFactory;
  }());
  /**
   * A base rule which calls `match`
   *
   * The value from the `match` function is passed through to the `handler`.
   * @internalapi
   */
  var BaseUrlRule = /** @class */ (function () {
    function BaseUrlRule(match, handler) {
      var _this = this;
      this.match = match;
      this.type = "RAW";
      this.matchPriority = function (match) { return 0 - _this.$id; };
      this.handler = handler || identity;
    }
    return BaseUrlRule;
  }());

  /**
   * @internalapi
   * @module url
   */
  /** for typedoc */
  /** @hidden */
  function appendBasePath(url, isHtml5, absolute, baseHref) {
    if (baseHref === '/')
      return url;
    if (isHtml5)
      return stripFile(baseHref) + url;
    if (absolute)
      return baseHref.slice(1) + url;
    return url;
  }
  /** @hidden */
  var prioritySort = function (a, b) {
    return (b.priority || 0) - (a.priority || 0);
  };
  /** @hidden */
  var typeSort = function (a, b) {
    var weights = { "STATE": 4, "URLMATCHER": 4, "REGEXP": 3, "RAW": 2, "OTHER": 1 };
    return (weights[a.type] || 0) - (weights[b.type] || 0);
  };
  /** @hidden */
  var urlMatcherSort = function (a, b) {
    return !a.urlMatcher || !b.urlMatcher ? 0 : UrlMatcher.compare(a.urlMatcher, b.urlMatcher);
  };
  /** @hidden */
  var idSort = function (a, b) {
    // Identically sorted STATE and URLMATCHER best rule will be chosen by `matchPriority` after each rule matches the URL
    var useMatchPriority = { STATE: true, URLMATCHER: true };
    var equal = useMatchPriority[a.type] && useMatchPriority[b.type];
    return equal ? 0 : (a.$id || 0) - (b.$id || 0);
  };
  /**
   * Default rule priority sorting function.
   *
   * Sorts rules by:
   *
   * - Explicit priority (set rule priority using [[UrlRulesApi.when]])
   * - Rule type (STATE: 4, URLMATCHER: 4, REGEXP: 3, RAW: 2, OTHER: 1)
   * - `UrlMatcher` specificity ([[UrlMatcher.compare]]): works for STATE and URLMATCHER types to pick the most specific rule.
   * - Rule registration order (for rule types other than STATE and URLMATCHER)
   *   - Equally sorted State and UrlMatcher rules will each match the URL.
   *     Then, the *best* match is chosen based on how many parameter values were matched.
   *
   * @coreapi
   */
  var defaultRuleSortFn;
  defaultRuleSortFn = function (a, b) {
    var cmp = prioritySort(a, b);
    if (cmp !== 0)
      return cmp;
    cmp = typeSort(a, b);
    if (cmp !== 0)
      return cmp;
    cmp = urlMatcherSort(a, b);
    if (cmp !== 0)
      return cmp;
    return idSort(a, b);
  };
  /**
   * Updates URL and responds to URL changes
   *
   * ### Deprecation warning:
   * This class is now considered to be an internal API
   * Use the [[UrlService]] instead.
   * For configuring URL rules, use the [[UrlRulesApi]] which can be found as [[UrlService.rules]].
   *
   * This class updates the URL when the state changes.
   * It also responds to changes in the URL.
   */
  var UrlRouter = /** @class */ (function () {
    /** @hidden */
    function UrlRouter(router) {
      /** @hidden */ this._sortFn = defaultRuleSortFn;
      /** @hidden */ this._rules = [];
      /** @hidden */ this.interceptDeferred = false;
      /** @hidden */ this._id = 0;
      /** @hidden */ this._sorted = false;
      this._router = router;
      this.urlRuleFactory = new UrlRuleFactory(router);
      createProxyFunctions(val(UrlRouter.prototype), this, val(this));
    }
    /** @internalapi */
    UrlRouter.prototype.dispose = function () {
      this.listen(false);
      this._rules = [];
      delete this._otherwiseFn;
    };
    /** @inheritdoc */
    UrlRouter.prototype.sort = function (compareFn) {
      this._rules = this.stableSort(this._rules, this._sortFn = compareFn || this._sortFn);
      this._sorted = true;
    };
    UrlRouter.prototype.ensureSorted = function () {
      this._sorted || this.sort();
    };
    UrlRouter.prototype.stableSort = function (arr, compareFn) {
      var arrOfWrapper = arr.map(function (elem, idx) { return ({ elem: elem, idx: idx }); });
      arrOfWrapper.sort(function (wrapperA, wrapperB) {
        var cmpDiff = compareFn(wrapperA.elem, wrapperB.elem);
        return cmpDiff === 0
          ? wrapperA.idx - wrapperB.idx
          : cmpDiff;
      });
      return arrOfWrapper.map(function (wrapper) { return wrapper.elem; });
    };
    /**
     * Given a URL, check all rules and return the best [[MatchResult]]
     * @param url
     * @returns {MatchResult}
     */
    UrlRouter.prototype.match = function (url) {
      var _this = this;
      this.ensureSorted();
      url = extend({ path: '', search: {}, hash: '' }, url);
      var rules = this.rules();
      if (this._otherwiseFn)
        rules.push(this._otherwiseFn);
      // Checks a single rule. Returns { rule: rule, match: match, weight: weight } if it matched, or undefined
      var checkRule = function (rule) {
        var match = rule.match(url, _this._router);
        return match && { match: match, rule: rule, weight: rule.matchPriority(match) };
      };
      // The rules are pre-sorted.
      // - Find the first matching rule.
      // - Find any other matching rule that sorted *exactly the same*, according to `.sort()`.
      // - Choose the rule with the highest match weight.
      var best;
      for (var i = 0; i < rules.length; i++) {
        // Stop when there is a 'best' rule and the next rule sorts differently than it.
        if (best && this._sortFn(rules[i], best.rule) !== 0)
          break;
        var current = checkRule(rules[i]);
        // Pick the best MatchResult
        best = (!best || current && current.weight > best.weight) ? current : best;
      }
      return best;
    };
    /** @inheritdoc */
    UrlRouter.prototype.sync = function (evt) {
      if (evt && evt.defaultPrevented)
        return;
      var router = this._router, $url = router.urlService, $state = router.stateService;
      var url = {
        path: $url.path(), search: $url.search(), hash: $url.hash(),
      };
      var best = this.match(url);
      var applyResult = pattern([
        [isString, function (newurl) { return $url.url(newurl, true); }],
        [TargetState.isDef, function (def) { return $state.go(def.state, def.params, def.options); }],
        [is(TargetState), function (target) { return $state.go(target.state(), target.params(), target.options()); }],
      ]);
      applyResult(best && best.rule.handler(best.match, url, router));
    };
    /** @inheritdoc */
    UrlRouter.prototype.listen = function (enabled) {
      var _this = this;
      if (enabled === false) {
        this._stopFn && this._stopFn();
        delete this._stopFn;
      }
      else {
        return this._stopFn = this._stopFn || this._router.urlService.onChange(function (evt) { return _this.sync(evt); });
      }
    };
    /**
     * Internal API.
     * @internalapi
     */
    UrlRouter.prototype.update = function (read) {
      var $url = this._router.locationService;
      if (read) {
        this.location = $url.path();
        return;
      }
      if ($url.path() === this.location)
        return;
      $url.url(this.location, true);
    };
    /**
     * Internal API.
     *
     * Pushes a new location to the browser history.
     *
     * @internalapi
     * @param urlMatcher
     * @param params
     * @param options
     */
    UrlRouter.prototype.push = function (urlMatcher, params, options) {
      var replace = options && !!options.replace;
      this._router.urlService.url(urlMatcher.format(params || {}), replace);
    };
    /**
     * Builds and returns a URL with interpolated parameters
     *
     * #### Example:
     * ```js
     * matcher = $umf.compile("/about/:person");
     * params = { person: "bob" };
     * $bob = $urlRouter.href(matcher, params);
     * // $bob == "/about/bob";
     * ```
     *
     * @param urlMatcher The [[UrlMatcher]] object which is used as the template of the URL to generate.
     * @param params An object of parameter values to fill the matcher's required parameters.
     * @param options Options object. The options are:
     *
     * - **`absolute`** - {boolean=false},  If true will generate an absolute url, e.g. "http://www.example.com/fullurl".
     *
     * @returns Returns the fully compiled URL, or `null` if `params` fail validation against `urlMatcher`
     */
    UrlRouter.prototype.href = function (urlMatcher, params, options) {
      var url = urlMatcher.format(params);
      if (url == null)
        return null;
      options = options || { absolute: false };
      var cfg = this._router.urlService.config;
      var isHtml5 = cfg.html5Mode();
      if (!isHtml5 && url !== null) {
        url = "#" + cfg.hashPrefix() + url;
      }
      url = appendBasePath(url, isHtml5, options.absolute, cfg.baseHref());
      if (!options.absolute || !url) {
        return url;
      }
      var slash = (!isHtml5 && url ? '/' : ''), port = cfg.port();
      port = (port === 80 || port === 443 ? '' : ':' + port);
      return [cfg.protocol(), '://', cfg.host(), port, slash, url].join('');
    };
    /**
     * Manually adds a URL Rule.
     *
     * Usually, a url rule is added using [[StateDeclaration.url]] or [[when]].
     * This api can be used directly for more control (to register a [[BaseUrlRule]], for example).
     * Rules can be created using [[UrlRouter.urlRuleFactory]], or create manually as simple objects.
     *
     * A rule should have a `match` function which returns truthy if the rule matched.
     * It should also have a `handler` function which is invoked if the rule is the best match.
     *
     * @return a function that deregisters the rule
     */
    UrlRouter.prototype.rule = function (rule) {
      var _this = this;
      if (!UrlRuleFactory.isUrlRule(rule))
        throw new Error("invalid rule");
      rule.$id = this._id++;
      rule.priority = rule.priority || 0;
      this._rules.push(rule);
      this._sorted = false;
      return function () { return _this.removeRule(rule); };
    };
    /** @inheritdoc */
    UrlRouter.prototype.removeRule = function (rule) {
      removeFrom(this._rules, rule);
    };
    /** @inheritdoc */
    UrlRouter.prototype.rules = function () {
      this.ensureSorted();
      return this._rules.slice();
    };
    /** @inheritdoc */
    UrlRouter.prototype.otherwise = function (handler) {
      var handlerFn = getHandlerFn(handler);
      this._otherwiseFn = this.urlRuleFactory.create(val(true), handlerFn);
      this._sorted = false;
    };

    /** @inheritdoc */
    UrlRouter.prototype.initial = function (handler) {
      var handlerFn = getHandlerFn(handler);
      var matchFn = function (urlParts, router) {
        return router.globals.transitionHistory.size() === 0 && !!/^\/?$/.exec(urlParts.path);
      };
      this.rule(this.urlRuleFactory.create(matchFn, handlerFn));
    };

    /** @inheritdoc */
    UrlRouter.prototype.when = function (matcher, handler, options) {
      var rule = this.urlRuleFactory.create(matcher, handler);
      if (isDefined(options && options.priority))
        rule.priority = options.priority;
      this.rule(rule);
      return rule;
    };

    /** @inheritdoc */
    UrlRouter.prototype.deferIntercept = function (defer) {
      if (defer === undefined)
        defer = true;
      this.interceptDeferred = defer;
    };

    return UrlRouter;
  }());
  function getHandlerFn(handler) {
    if (!isFunction(handler) && !isString(handler) && !is(TargetState)(handler) && !TargetState.isDef(handler)) {
      throw new Error("'handler' must be a string, function, TargetState, or have a state: 'newtarget' property");
    }
    return isFunction(handler) ? handler : val(handler);
  }

  /**
   * @coreapi
   * @module view
   */ /** for typedoc */
  /**
   * The View service
   *
   * This service pairs existing `ui-view` components (which live in the DOM)
   * with view configs (from the state declaration objects: [[StateDeclaration.views]]).
   *
   * - After a successful Transition, the views from the newly entered states are activated via [[activateViewConfig]].
   *   The views from exited states are deactivated via [[deactivateViewConfig]].
   *   (See: the [[registerActivateViews]] Transition Hook)
   *
   * - As `ui-view` components pop in and out of existence, they register themselves using [[registerUIView]].
   *
   * - When the [[sync]] function is called, the registered `ui-view`(s) ([[ActiveUIView]])
   * are configured with the matching [[ViewConfig]](s)
   *
   */
  var ViewService = /** @class */ (function () {
    function ViewService() {
      var _this = this;
      this._uiViews = [];
      this._viewConfigs = [];
      this._viewConfigFactories = {};
      this._pluginapi = {
        _rootViewContext: this._rootViewContext.bind(this),
        _viewConfigFactory: this._viewConfigFactory.bind(this),
        _registeredUIViews: function () { return _this._uiViews; },
        _activeViewConfigs: function () { return _this._viewConfigs; },
      };
    }
    ViewService.prototype._rootViewContext = function (context) {
      return this._rootContext = context || this._rootContext;
    };

    ViewService.prototype._viewConfigFactory = function (viewType, factory) {
      this._viewConfigFactories[viewType] = factory;
    };
    ViewService.prototype.createViewConfig = function (path, decl) {
      var cfgFactory = this._viewConfigFactories[decl.$type];
      if (!cfgFactory)
        throw new Error("ViewService: No view config factory registered for type " + decl.$type);
      var cfgs = cfgFactory(path, decl);
      return isArray(cfgs) ? cfgs : [cfgs];
    };
    /**
     * Deactivates a ViewConfig.
     *
     * This function deactivates a `ViewConfig`.
     * After calling [[sync]], it will un-pair from any `ui-view` with which it is currently paired.
     *
     * @param viewConfig The ViewConfig view to deregister.
     */
    ViewService.prototype.deactivateViewConfig = function (viewConfig) {
      trace.traceViewServiceEvent("<- Removing", viewConfig);
      removeFrom(this._viewConfigs, viewConfig);
    };
    ViewService.prototype.activateViewConfig = function (viewConfig) {
      trace.traceViewServiceEvent("-> Registering", viewConfig);
      this._viewConfigs.push(viewConfig);
    };
    ViewService.prototype.sync = function () {
      var _this = this;
      var uiViewsByFqn = this._uiViews.map(function (uiv) { return [uiv.fqn, uiv]; }).reduce(applyPairs, {});
      // Return a weighted depth value for a uiView.
      // The depth is the nesting depth of ui-views (based on FQN; times 10,000)
      // plus the depth of the state that is populating the uiView
      function uiViewDepth(uiView) {
        var stateDepth = function (context) {
          return context && context.parent ? stateDepth(context.parent) + 1 : 1;
        };
        return (uiView.fqn.split(".").length * 10000) + stateDepth(uiView.creationContext);
      }
      // Return the ViewConfig's context's depth in the context tree.
      function viewConfigDepth(config) {
        var context = config.viewDecl.$context, count = 0;
        while (++count && context.parent)
          context = context.parent;
        return count;
      }
      // Given a depth function, returns a compare function which can return either ascending or descending order
      var depthCompare = curry(function (depthFn, posNeg, left, right) { return posNeg * (depthFn(left) - depthFn(right)); });
      var matchingConfigPair = function (uiView) {
        var matchingConfigs = _this._viewConfigs.filter(ViewService.matches(uiViewsByFqn, uiView));
        if (matchingConfigs.length > 1) {
          // This is OK.  Child states can target a ui-view that the parent state also targets (the child wins)
          // Sort by depth and return the match from the deepest child
          // console.log(`Multiple matching view configs for ${uiView.fqn}`, matchingConfigs);
          matchingConfigs.sort(depthCompare(viewConfigDepth, -1)); // descending
        }
        return [uiView, matchingConfigs[0]];
      };
      var configureUIView = function (_a) {
        var uiView = _a[0], viewConfig = _a[1];
        // If a parent ui-view is reconfigured, it could destroy child ui-views.
        // Before configuring a child ui-view, make sure it's still in the active uiViews array.
        if (_this._uiViews.indexOf(uiView) !== -1)
          uiView.configUpdated(viewConfig);
      };
      // Sort views by FQN and state depth. Process uiviews nearest the root first.
      var pairs$$1 = this._uiViews.sort(depthCompare(uiViewDepth, 1)).map(matchingConfigPair);
      trace.traceViewSync(pairs$$1);
      pairs$$1.forEach(configureUIView);
    };

    /**
     * Registers a `ui-view` component
     *
     * When a `ui-view` component is created, it uses this method to register itself.
     * After registration the [[sync]] method is used to ensure all `ui-view` are configured with the proper [[ViewConfig]].
     *
     * Note: the `ui-view` component uses the `ViewConfig` to determine what view should be loaded inside the `ui-view`,
     * and what the view's state context is.
     *
     * Note: There is no corresponding `deregisterUIView`.
     *       A `ui-view` should hang on to the return value of `registerUIView` and invoke it to deregister itself.
     *
     * @param uiView The metadata for a UIView
     * @return a de-registration function used when the view is destroyed.
     */
    ViewService.prototype.registerUIView = function (uiView) {
      trace.traceViewServiceUIViewEvent("-> Registering", uiView);
      var uiViews = this._uiViews;
      var fqnAndTypeMatches = function (uiv) { return uiv.fqn === uiView.fqn && uiv.$type === uiView.$type; };
      if (uiViews.filter(fqnAndTypeMatches).length)
        trace.traceViewServiceUIViewEvent("!!!! duplicate uiView named:", uiView);
      uiViews.push(uiView);
      this.sync();
      return function () {
        var idx = uiViews.indexOf(uiView);
        if (idx === -1) {
          trace.traceViewServiceUIViewEvent("Tried removing non-registered uiView", uiView);
          return;
        }
        trace.traceViewServiceUIViewEvent("<- Deregistering", uiView);
        removeFrom(uiViews)(uiView);
      };
    };

    /**
     * Returns the list of views currently available on the page, by fully-qualified name.
     *
     * @return {Array} Returns an array of fully-qualified view names.
     */
    ViewService.prototype.available = function () {
      return this._uiViews.map(prop("fqn"));
    };
    /**
     * Returns the list of views on the page containing loaded content.
     *
     * @return {Array} Returns an array of fully-qualified view names.
     */
    ViewService.prototype.active = function () {
      return this._uiViews.filter(prop("$config")).map(prop("name"));
    };
    /**
     * Normalizes a view's name from a state.views configuration block.
     *
     * This should be used by a framework implementation to calculate the values for
     * [[_ViewDeclaration.$uiViewName]] and [[_ViewDeclaration.$uiViewContextAnchor]].
     *
     * @param context the context object (state declaration) that the view belongs to
     * @param rawViewName the name of the view, as declared in the [[StateDeclaration.views]]
     *
     * @returns the normalized uiViewName and uiViewContextAnchor that the view targets
     */
    ViewService.normalizeUIViewTarget = function (context, rawViewName) {
      if (rawViewName === void 0) { rawViewName = ""; }
      // TODO: Validate incoming view name with a regexp to allow:
      // ex: "view.name@foo.bar" , "^.^.view.name" , "view.name@^.^" , "" ,
      // "@" , "$default@^" , "!$default.$default" , "!foo.bar"
      var viewAtContext = rawViewName.split("@");
      var uiViewName = viewAtContext[0] || "$default"; // default to unnamed view
      var uiViewContextAnchor = isString(viewAtContext[1]) ? viewAtContext[1] : "^"; // default to parent context
      // Handle relative view-name sugar syntax.
      // Matches rawViewName "^.^.^.foo.bar" into array: ["^.^.^.foo.bar", "^.^.^", "foo.bar"],
      var relativeViewNameSugar = /^(\^(?:\.\^)*)\.(.*$)/.exec(uiViewName);
      if (relativeViewNameSugar) {
        // Clobbers existing contextAnchor (rawViewName validation will fix this)
        uiViewContextAnchor = relativeViewNameSugar[1]; // set anchor to "^.^.^"
        uiViewName = relativeViewNameSugar[2]; // set view-name to "foo.bar"
      }
      if (uiViewName.charAt(0) === '!') {
        uiViewName = uiViewName.substr(1);
        uiViewContextAnchor = ""; // target absolutely from root
      }
      // handle parent relative targeting "^.^.^"
      var relativeMatch = /^(\^(?:\.\^)*)$/;
      if (relativeMatch.exec(uiViewContextAnchor)) {
        var anchor = uiViewContextAnchor.split(".").reduce((function (anchor, x) { return anchor.parent; }), context);
        uiViewContextAnchor = anchor.name;
      }
      else if (uiViewContextAnchor === '.') {
        uiViewContextAnchor = context.name;
      }
      return { uiViewName: uiViewName, uiViewContextAnchor: uiViewContextAnchor };
    };
    /**
     * Given a ui-view and a ViewConfig, determines if they "match".
     *
     * A ui-view has a fully qualified name (fqn) and a context object.  The fqn is built from its overall location in
     * the DOM, describing its nesting relationship to any parent ui-view tags it is nested inside of.
     *
     * A ViewConfig has a target ui-view name and a context anchor.  The ui-view name can be a simple name, or
     * can be a segmented ui-view path, describing a portion of a ui-view fqn.
     *
     * In order for a ui-view to match ViewConfig, ui-view's $type must match the ViewConfig's $type
     *
     * If the ViewConfig's target ui-view name is a simple name (no dots), then a ui-view matches if:
     * - the ui-view's name matches the ViewConfig's target name
     * - the ui-view's context matches the ViewConfig's anchor
     *
     * If the ViewConfig's target ui-view name is a segmented name (with dots), then a ui-view matches if:
     * - There exists a parent ui-view where:
     *    - the parent ui-view's name matches the first segment (index 0) of the ViewConfig's target name
     *    - the parent ui-view's context matches the ViewConfig's anchor
     * - And the remaining segments (index 1..n) of the ViewConfig's target name match the tail of the ui-view's fqn
     *
     * Example:
     *
     * DOM:
     * <ui-view>                        <!-- created in the root context (name: "") -->
     *   <ui-view name="foo">                <!-- created in the context named: "A"      -->
     *     <ui-view>                    <!-- created in the context named: "A.B"    -->
     *       <ui-view name="bar">            <!-- created in the context named: "A.B.C"  -->
     *       </ui-view>
     *     </ui-view>
     *   </ui-view>
     * </ui-view>
     *
     * uiViews: [
     *  { fqn: "$default",                  creationContext: { name: "" } },
     *  { fqn: "$default.foo",              creationContext: { name: "A" } },
     *  { fqn: "$default.foo.$default",     creationContext: { name: "A.B" } }
     *  { fqn: "$default.foo.$default.bar", creationContext: { name: "A.B.C" } }
     * ]
     *
     * These four view configs all match the ui-view with the fqn: "$default.foo.$default.bar":
     *
     * - ViewConfig1: { uiViewName: "bar",                       uiViewContextAnchor: "A.B.C" }
     * - ViewConfig2: { uiViewName: "$default.bar",              uiViewContextAnchor: "A.B" }
     * - ViewConfig3: { uiViewName: "foo.$default.bar",          uiViewContextAnchor: "A" }
     * - ViewConfig4: { uiViewName: "$default.foo.$default.bar", uiViewContextAnchor: "" }
     *
     * Using ViewConfig3 as an example, it matches the ui-view with fqn "$default.foo.$default.bar" because:
     * - The ViewConfig's segmented target name is: [ "foo", "$default", "bar" ]
     * - There exists a parent ui-view (which has fqn: "$default.foo") where:
     *    - the parent ui-view's name "foo" matches the first segment "foo" of the ViewConfig's target name
     *    - the parent ui-view's context "A" matches the ViewConfig's anchor context "A"
     * - And the remaining segments [ "$default", "bar" ].join("."_ of the ViewConfig's target name match
     *   the tail of the ui-view's fqn "default.bar"
     *
     * @internalapi
     */
    ViewService.matches = function (uiViewsByFqn, uiView) { return function (viewConfig) {
      // Don't supply an ng1 ui-view with an ng2 ViewConfig, etc
      if (uiView.$type !== viewConfig.viewDecl.$type)
        return false;
      // Split names apart from both viewConfig and uiView into segments
      var vc = viewConfig.viewDecl;
      var vcSegments = vc.$uiViewName.split(".");
      var uivSegments = uiView.fqn.split(".");
      // Check if the tails of the segment arrays match. ex, these arrays' tails match:
      // vc: ["foo", "bar"], uiv fqn: ["$default", "foo", "bar"]
      if (!equals(vcSegments, uivSegments.slice(0 - vcSegments.length)))
        return false;
      // Now check if the fqn ending at the first segment of the viewConfig matches the context:
      // ["$default", "foo"].join(".") == "$default.foo", does the ui-view $default.foo context match?
      var negOffset = (1 - vcSegments.length) || undefined;
      var fqnToFirstSegment = uivSegments.slice(0, negOffset).join(".");
      var uiViewContext = uiViewsByFqn[fqnToFirstSegment].creationContext;
      return vc.$uiViewContextAnchor === (uiViewContext && uiViewContext.name);
    }; };
    return ViewService;
  }());

  /**
   * @coreapi
   * @module core
   */ /** */
  /**
   * Global router state
   *
   * This is where we hold the global mutable state such as current state, current
   * params, current transition, etc.
   */
  var UIRouterGlobals = /** @class */ (function () {
    function UIRouterGlobals() {
      /**
       * Current parameter values
       *
       * The parameter values from the latest successful transition
       */
      this.params = new StateParams();
      /** @internalapi */
      this.lastStartedTransitionId = -1;
      /** @internalapi */
      this.transitionHistory = new Queue([], 1);
      /** @internalapi */
      this.successfulTransitions = new Queue([], 1);
    }
    UIRouterGlobals.prototype.dispose = function () {
      this.transitionHistory.clear();
      this.successfulTransitions.clear();
      this.transition = null;
    };
    return UIRouterGlobals;
  }());

  /**
   * @coreapi
   * @module url
   */ /** */
  /** @hidden */
  var makeStub = function (keys) {
    return keys.reduce(function (acc, key) { return (acc[key] = notImplemented(key), acc); }, { dispose: noop$1 });
  };
  /** @hidden */ var locationServicesFns = ["url", "path", "search", "hash", "onChange"];
  /** @hidden */ var locationConfigFns = ["port", "protocol", "host", "baseHref", "html5Mode", "hashPrefix"];
  /** @hidden */ var umfFns = ["type", "caseInsensitive", "strictMode", "defaultSquashPolicy"];
  /** @hidden */ var rulesFns = ["sort", "when", "initial", "otherwise", "rules", "rule", "removeRule"];
  /** @hidden */ var syncFns = ["deferIntercept", "listen", "sync", "match"];
  /**
   * API for URL management
   */
  var UrlService = /** @class */ (function () {
    /** @hidden */
    function UrlService(router, lateBind) {
      if (lateBind === void 0) { lateBind = true; }
      this.router = router;
      this.rules = {};
      this.config = {};
      // proxy function calls from UrlService to the LocationService/LocationConfig
      var locationServices = function () { return router.locationService; };
      createProxyFunctions(locationServices, this, locationServices, locationServicesFns, lateBind);
      var locationConfig = function () { return router.locationConfig; };
      createProxyFunctions(locationConfig, this.config, locationConfig, locationConfigFns, lateBind);
      var umf = function () { return router.urlMatcherFactory; };
      createProxyFunctions(umf, this.config, umf, umfFns);
      var urlRouter = function () { return router.urlRouter; };
      createProxyFunctions(urlRouter, this.rules, urlRouter, rulesFns);
      createProxyFunctions(urlRouter, this, urlRouter, syncFns);
    }
    UrlService.prototype.url = function (newurl, replace, state) { return; };

    /** @inheritdoc */
    UrlService.prototype.path = function () { return; };

    /** @inheritdoc */
    UrlService.prototype.search = function () { return; };

    /** @inheritdoc */
    UrlService.prototype.hash = function () { return; };

    /** @inheritdoc */
    UrlService.prototype.onChange = function (callback) { return; };

    /**
     * Returns the current URL parts
     *
     * This method returns the current URL components as a [[UrlParts]] object.
     *
     * @returns the current url parts
     */
    UrlService.prototype.parts = function () {
      return { path: this.path(), search: this.search(), hash: this.hash() };
    };
    UrlService.prototype.dispose = function () { };
    /** @inheritdoc */
    UrlService.prototype.sync = function (evt) { return; };
    /** @inheritdoc */
    UrlService.prototype.listen = function (enabled) { return; };

    /** @inheritdoc */
    UrlService.prototype.deferIntercept = function (defer) { return; };
    /** @inheritdoc */
    UrlService.prototype.match = function (urlParts) { return; };
    /** @hidden */
    UrlService.locationServiceStub = makeStub(locationServicesFns);
    /** @hidden */
    UrlService.locationConfigStub = makeStub(locationConfigFns);
    return UrlService;
  }());

  /**
   * @coreapi
   * @module core
   */ /** */
  /** @hidden */
  var _routerInstance = 0;
  /**
   * The master class used to instantiate an instance of UI-Router.
   *
   * UI-Router (for each specific framework) will create an instance of this class during bootstrap.
   * This class instantiates and wires the UI-Router services together.
   *
   * After a new instance of the UIRouter class is created, it should be configured for your app.
   * For instance, app states should be registered with the [[UIRouter.stateRegistry]].
   *
   * ---
   *
   * Normally the framework code will bootstrap UI-Router.
   * If you are bootstrapping UIRouter manually, tell it to monitor the URL by calling
   * [[UrlService.listen]] then [[UrlService.sync]].
   */
  var UIRouter = /** @class */ (function () {
    /**
     * Creates a new `UIRouter` object
     *
     * @param locationService a [[LocationServices]] implementation
     * @param locationConfig a [[LocationConfig]] implementation
     * @internalapi
     */
    function UIRouter(locationService, locationConfig) {
      if (locationService === void 0) { locationService = UrlService.locationServiceStub; }
      if (locationConfig === void 0) { locationConfig = UrlService.locationConfigStub; }
      this.locationService = locationService;
      this.locationConfig = locationConfig;
      /** @hidden */ this.$id = _routerInstance++;
      /** @hidden */ this._disposed = false;
      /** @hidden */ this._disposables = [];
      /** Provides trace information to the console */
      this.trace = trace;
      /** Provides services related to ui-view synchronization */
      this.viewService = new ViewService();
      /** Provides services related to Transitions */
      this.transitionService = new TransitionService(this);
      /** Global router state */
      this.globals = new UIRouterGlobals();
      /**
       * Deprecated for public use. Use [[urlService]] instead.
       * @deprecated Use [[urlService]] instead
       */
      this.urlMatcherFactory = new UrlMatcherFactory();
      /**
       * Deprecated for public use. Use [[urlService]] instead.
       * @deprecated Use [[urlService]] instead
       */
      this.urlRouter = new UrlRouter(this);
      /** Provides a registry for states, and related registration services */
      this.stateRegistry = new StateRegistry(this);
      /** Provides services related to states */
      this.stateService = new StateService(this);
      /** Provides services related to the URL */
      this.urlService = new UrlService(this);
      /** @hidden */
      this._plugins = {};
      this.viewService._pluginapi._rootViewContext(this.stateRegistry.root());
      this.globals.$current = this.stateRegistry.root();
      this.globals.current = this.globals.$current.self;
      this.disposable(this.globals);
      this.disposable(this.stateService);
      this.disposable(this.stateRegistry);
      this.disposable(this.transitionService);
      this.disposable(this.urlRouter);
      this.disposable(locationService);
      this.disposable(locationConfig);
    }
    /** Registers an object to be notified when the router is disposed */
    UIRouter.prototype.disposable = function (disposable) {
      this._disposables.push(disposable);
    };
    /**
     * Disposes this router instance
     *
     * When called, clears resources retained by the router by calling `dispose(this)` on all
     * registered [[disposable]] objects.
     *
     * Or, if a `disposable` object is provided, calls `dispose(this)` on that object only.
     *
     * @param disposable (optional) the disposable to dispose
     */
    UIRouter.prototype.dispose = function (disposable) {
      var _this = this;
      if (disposable && isFunction(disposable.dispose)) {
        disposable.dispose(this);
        return undefined;
      }
      this._disposed = true;
      this._disposables.slice().forEach(function (d) {
        try {
          typeof d.dispose === 'function' && d.dispose(_this);
          removeFrom(_this._disposables, d);
        }
        catch (ignored) { }
      });
    };
    /**
     * Adds a plugin to UI-Router
     *
     * This method adds a UI-Router Plugin.
     * A plugin can enhance or change UI-Router behavior using any public API.
     *
     * #### Example:
     * ```js
     * import { MyCoolPlugin } from "ui-router-cool-plugin";
     *
     * var plugin = router.addPlugin(MyCoolPlugin);
     * ```
     *
     * ### Plugin authoring
     *
     * A plugin is simply a class (or constructor function) which accepts a [[UIRouter]] instance and (optionally) an options object.
     *
     * The plugin can implement its functionality using any of the public APIs of [[UIRouter]].
     * For example, it may configure router options or add a Transition Hook.
     *
     * The plugin can then be published as a separate module.
     *
     * #### Example:
     * ```js
     * export class MyAuthPlugin implements UIRouterPlugin {
     *   constructor(router: UIRouter, options: any) {
     *     this.name = "MyAuthPlugin";
     *     let $transitions = router.transitionService;
     *     let $state = router.stateService;
     *
     *     let authCriteria = {
     *       to: (state) => state.data && state.data.requiresAuth
     *     };
     *
     *     function authHook(transition: Transition) {
     *       let authService = transition.injector().get('AuthService');
     *       if (!authService.isAuthenticated()) {
     *         return $state.target('login');
     *       }
     *     }
     *
     *     $transitions.onStart(authCriteria, authHook);
     *   }
     * }
     * ```
     *
     * @param plugin one of:
     *        - a plugin class which implements [[UIRouterPlugin]]
     *        - a constructor function for a [[UIRouterPlugin]] which accepts a [[UIRouter]] instance
     *        - a factory function which accepts a [[UIRouter]] instance and returns a [[UIRouterPlugin]] instance
     * @param options options to pass to the plugin class/factory
     * @returns the registered plugin instance
     */
    UIRouter.prototype.plugin = function (plugin, options) {
      if (options === void 0) { options = {}; }
      var pluginInstance = new plugin(this, options);
      if (!pluginInstance.name)
        throw new Error("Required property `name` missing on plugin: " + pluginInstance);
      this._disposables.push(pluginInstance);
      return this._plugins[pluginInstance.name] = pluginInstance;
    };
    UIRouter.prototype.getPlugin = function (pluginName) {
      return pluginName ? this._plugins[pluginName] : values(this._plugins);
    };
    return UIRouter;
  }());

  /** @module hooks */ /** */
  function addCoreResolvables(trans) {
    trans.addResolvable({ token: UIRouter, deps: [], resolveFn: function () { return trans.router; }, data: trans.router }, "");
    trans.addResolvable({ token: Transition, deps: [], resolveFn: function () { return trans; }, data: trans }, "");
    trans.addResolvable({ token: '$transition$', deps: [], resolveFn: function () { return trans; }, data: trans }, "");
    trans.addResolvable({ token: '$stateParams', deps: [], resolveFn: function () { return trans.params(); }, data: trans.params() }, "");
    trans.entering().forEach(function (state) {
      trans.addResolvable({ token: '$state$', deps: [], resolveFn: function () { return state; }, data: state }, state);
    });
  }
  var registerAddCoreResolvables = function (transitionService) {
    return transitionService.onCreate({}, addCoreResolvables);
  };

  /** @module hooks */ /** */
  /**
   * A [[TransitionHookFn]] that redirects to a different state or params
   *
   * Registered using `transitionService.onStart({ to: (state) => !!state.redirectTo }, redirectHook);`
   *
   * See [[StateDeclaration.redirectTo]]
   */
  var redirectToHook = function (trans) {
    var redirect = trans.to().redirectTo;
    if (!redirect)
      return;
    var $state = trans.router.stateService;
    function handleResult(result) {
      if (!result)
        return;
      if (result instanceof TargetState)
        return result;
      if (isString(result))
        return $state.target(result, trans.params(), trans.options());
      if (result['state'] || result['params'])
        return $state.target(result['state'] || trans.to(), result['params'] || trans.params(), trans.options());
    }
    if (isFunction(redirect)) {
      return services.$q.when(redirect(trans)).then(handleResult);
    }
    return handleResult(redirect);
  };
  var registerRedirectToHook = function (transitionService) {
    return transitionService.onStart({ to: function (state) { return !!state.redirectTo; } }, redirectToHook);
  };

  /**
   * A factory which creates an onEnter, onExit or onRetain transition hook function
   *
   * The returned function invokes the (for instance) state.onEnter hook when the
   * state is being entered.
   *
   * @hidden
   */
  function makeEnterExitRetainHook(hookName) {
    return function (transition, state) {
      var _state = state.$$state();
      var hookFn = _state[hookName];
      return hookFn(transition, state);
    };
  }
  /**
   * The [[TransitionStateHookFn]] for onExit
   *
   * When the state is being exited, the state's .onExit function is invoked.
   *
   * Registered using `transitionService.onExit({ exiting: (state) => !!state.onExit }, onExitHook);`
   *
   * See: [[IHookRegistry.onExit]]
   */
  var onExitHook = makeEnterExitRetainHook('onExit');
  var registerOnExitHook = function (transitionService) {
    return transitionService.onExit({ exiting: function (state) { return !!state.onExit; } }, onExitHook);
  };
  /**
   * The [[TransitionStateHookFn]] for onRetain
   *
   * When the state was already entered, and is not being exited or re-entered, the state's .onRetain function is invoked.
   *
   * Registered using `transitionService.onRetain({ retained: (state) => !!state.onRetain }, onRetainHook);`
   *
   * See: [[IHookRegistry.onRetain]]
   */
  var onRetainHook = makeEnterExitRetainHook('onRetain');
  var registerOnRetainHook = function (transitionService) {
    return transitionService.onRetain({ retained: function (state) { return !!state.onRetain; } }, onRetainHook);
  };
  /**
   * The [[TransitionStateHookFn]] for onEnter
   *
   * When the state is being entered, the state's .onEnter function is invoked.
   *
   * Registered using `transitionService.onEnter({ entering: (state) => !!state.onEnter }, onEnterHook);`
   *
   * See: [[IHookRegistry.onEnter]]
   */
  var onEnterHook = makeEnterExitRetainHook('onEnter');
  var registerOnEnterHook = function (transitionService) {
    return transitionService.onEnter({ entering: function (state) { return !!state.onEnter; } }, onEnterHook);
  };

  /** @module hooks */
  /** for typedoc */
  /**
   * A [[TransitionHookFn]] which resolves all EAGER Resolvables in the To Path
   *
   * Registered using `transitionService.onStart({}, eagerResolvePath);`
   *
   * When a Transition starts, this hook resolves all the EAGER Resolvables, which the transition then waits for.
   *
   * See [[StateDeclaration.resolve]]
   */
  var eagerResolvePath = function (trans) {
    return new ResolveContext(trans.treeChanges().to)
      .resolvePath("EAGER", trans)
      .then(noop$1);
  };
  var registerEagerResolvePath = function (transitionService) {
    return transitionService.onStart({}, eagerResolvePath, { priority: 1000 });
  };
  /**
   * A [[TransitionHookFn]] which resolves all LAZY Resolvables for the state (and all its ancestors) in the To Path
   *
   * Registered using `transitionService.onEnter({ entering: () => true }, lazyResolveState);`
   *
   * When a State is being entered, this hook resolves all the Resolvables for this state, which the transition then waits for.
   *
   * See [[StateDeclaration.resolve]]
   */
  var lazyResolveState = function (trans, state) {
    return new ResolveContext(trans.treeChanges().to)
      .subContext(state.$$state())
      .resolvePath("LAZY", trans)
      .then(noop$1);
  };
  var registerLazyResolveState = function (transitionService) {
    return transitionService.onEnter({ entering: val(true) }, lazyResolveState, { priority: 1000 });
  };

  /** @module hooks */ /** for typedoc */
  /**
   * A [[TransitionHookFn]] which waits for the views to load
   *
   * Registered using `transitionService.onStart({}, loadEnteringViews);`
   *
   * Allows the views to do async work in [[ViewConfig.load]] before the transition continues.
   * In angular 1, this includes loading the templates.
   */
  var loadEnteringViews = function (transition) {
    var $q = services.$q;
    var enteringViews = transition.views("entering");
    if (!enteringViews.length)
      return;
    return $q.all(enteringViews.map(function (view) { return $q.when(view.load()); })).then(noop$1);
  };
  var registerLoadEnteringViews = function (transitionService) {
    return transitionService.onFinish({}, loadEnteringViews);
  };
  /**
   * A [[TransitionHookFn]] which activates the new views when a transition is successful.
   *
   * Registered using `transitionService.onSuccess({}, activateViews);`
   *
   * After a transition is complete, this hook deactivates the old views from the previous state,
   * and activates the new views from the destination state.
   *
   * See [[ViewService]]
   */
  var activateViews = function (transition) {
    var enteringViews = transition.views("entering");
    var exitingViews = transition.views("exiting");
    if (!enteringViews.length && !exitingViews.length)
      return;
    var $view = transition.router.viewService;
    exitingViews.forEach(function (vc) { return $view.deactivateViewConfig(vc); });
    enteringViews.forEach(function (vc) { return $view.activateViewConfig(vc); });
    $view.sync();
  };
  var registerActivateViews = function (transitionService) {
    return transitionService.onSuccess({}, activateViews);
  };

  /**
   * A [[TransitionHookFn]] which updates global UI-Router state
   *
   * Registered using `transitionService.onBefore({}, updateGlobalState);`
   *
   * Before a [[Transition]] starts, updates the global value of "the current transition" ([[Globals.transition]]).
   * After a successful [[Transition]], updates the global values of "the current state"
   * ([[Globals.current]] and [[Globals.$current]]) and "the current param values" ([[Globals.params]]).
   *
   * See also the deprecated properties:
   * [[StateService.transition]], [[StateService.current]], [[StateService.params]]
   */
  var updateGlobalState = function (trans) {
    var globals = trans.router.globals;
    var transitionSuccessful = function () {
      globals.successfulTransitions.enqueue(trans);
      globals.$current = trans.$to();
      globals.current = globals.$current.self;
      copy(trans.params(), globals.params);
    };
    var clearCurrentTransition = function () {
      // Do not clear globals.transition if a different transition has started in the meantime
      if (globals.transition === trans)
        globals.transition = null;
    };
    trans.onSuccess({}, transitionSuccessful, { priority: 10000 });
    trans.promise.then(clearCurrentTransition, clearCurrentTransition);
  };
  var registerUpdateGlobalState = function (transitionService) {
    return transitionService.onCreate({}, updateGlobalState);
  };

  /**
   * A [[TransitionHookFn]] which updates the URL after a successful transition
   *
   * Registered using `transitionService.onSuccess({}, updateUrl);`
   */
  var updateUrl = function (transition) {
    var options = transition.options();
    var $state = transition.router.stateService;
    var $urlRouter = transition.router.urlRouter;
    // Dont update the url in these situations:
    // The transition was triggered by a URL sync (options.source === 'url')
    // The user doesn't want the url to update (options.location === false)
    // The destination state, and all parents have no navigable url
    if (options.source !== 'url' && options.location && $state.$current.navigable) {
      var urlOptions = { replace: options.location === 'replace' };
      $urlRouter.push($state.$current.navigable.url, $state.params, urlOptions);
    }
    $urlRouter.update(true);
  };
  var registerUpdateUrl = function (transitionService) {
    return transitionService.onSuccess({}, updateUrl, { priority: 9999 });
  };

  /**
   * A [[TransitionHookFn]] that performs lazy loading
   *
   * When entering a state "abc" which has a `lazyLoad` function defined:
   * - Invoke the `lazyLoad` function (unless it is already in process)
   *   - Flag the hook function as "in process"
   *   - The function should return a promise (that resolves when lazy loading is complete)
   * - Wait for the promise to settle
   *   - If the promise resolves to a [[LazyLoadResult]], then register those states
   *   - Flag the hook function as "not in process"
   * - If the hook was successful
   *   - Remove the `lazyLoad` function from the state declaration
   * - If all the hooks were successful
   *   - Retry the transition (by returning a TargetState)
   *
   * ```
   * .state('abc', {
 *   component: 'fooComponent',
 *   lazyLoad: () => System.import('./fooComponent')
 *   });
   * ```
   *
   * See [[StateDeclaration.lazyLoad]]
   */
  var lazyLoadHook = function (transition) {
    var router = transition.router;
    function retryTransition() {
      if (transition.originalTransition().options().source !== 'url') {
        // The original transition was not triggered via url sync
        // The lazy state should be loaded now, so re-try the original transition
        var orig = transition.targetState();
        return router.stateService.target(orig.identifier(), orig.params(), orig.options());
      }
      // The original transition was triggered via url sync
      // Run the URL rules and find the best match
      var $url = router.urlService;
      var result = $url.match($url.parts());
      var rule = result && result.rule;
      // If the best match is a state, redirect the transition (instead
      // of calling sync() which supersedes the current transition)
      if (rule && rule.type === "STATE") {
        var state = rule.state;
        var params = result.match;
        return router.stateService.target(state, params, transition.options());
      }
      // No matching state found, so let .sync() choose the best non-state match/otherwise
      router.urlService.sync();
    }
    var promises = transition.entering()
      .filter(function (state) { return !!state.$$state().lazyLoad; })
      .map(function (state) { return lazyLoadState(transition, state); });
    return services.$q.all(promises).then(retryTransition);
  };
  var registerLazyLoadHook = function (transitionService) {
    return transitionService.onBefore({ entering: function (state) { return !!state.lazyLoad; } }, lazyLoadHook);
  };
  /**
   * Invokes a state's lazy load function
   *
   * @param transition a Transition context
   * @param state the state to lazy load
   * @returns A promise for the lazy load result
   */
  function lazyLoadState(transition, state) {
    var lazyLoadFn = state.$$state().lazyLoad;
    // Store/get the lazy load promise on/from the hookfn so it doesn't get re-invoked
    var promise = lazyLoadFn['_promise'];
    if (!promise) {
      var success = function (result) {
        delete state.lazyLoad;
        delete state.$$state().lazyLoad;
        delete lazyLoadFn['_promise'];
        return result;
      };
      var error = function (err) {
        delete lazyLoadFn['_promise'];
        return services.$q.reject(err);
      };
      promise = lazyLoadFn['_promise'] =
        services.$q.when(lazyLoadFn(transition, state))
          .then(updateStateRegistry)
          .then(success, error);
    }
    /** Register any lazy loaded state definitions */
    function updateStateRegistry(result) {
      if (result && Array.isArray(result.states)) {
        result.states.forEach(function (state) { return transition.router.stateRegistry.register(state); });
      }
      return result;
    }
    return promise;
  }

  /**
   * This class defines a type of hook, such as `onBefore` or `onEnter`.
   * Plugins can define custom hook types, such as sticky states does for `onInactive`.
   *
   * @interalapi
   */
  var TransitionEventType = /** @class */ (function () {
    function TransitionEventType(name, hookPhase, hookOrder, criteriaMatchPath, reverseSort, getResultHandler, getErrorHandler, synchronous) {
      if (reverseSort === void 0) { reverseSort = false; }
      if (getResultHandler === void 0) { getResultHandler = TransitionHook.HANDLE_RESULT; }
      if (getErrorHandler === void 0) { getErrorHandler = TransitionHook.REJECT_ERROR; }
      if (synchronous === void 0) { synchronous = false; }
      this.name = name;
      this.hookPhase = hookPhase;
      this.hookOrder = hookOrder;
      this.criteriaMatchPath = criteriaMatchPath;
      this.reverseSort = reverseSort;
      this.getResultHandler = getResultHandler;
      this.getErrorHandler = getErrorHandler;
      this.synchronous = synchronous;
    }
    return TransitionEventType;
  }());

  /** @module hooks */ /** */
  /**
   * A [[TransitionHookFn]] that skips a transition if it should be ignored
   *
   * This hook is invoked at the end of the onBefore phase.
   *
   * If the transition should be ignored (because no parameter or states changed)
   * then the transition is ignored and not processed.
   */
  function ignoredHook(trans) {
    var ignoredReason = trans._ignoredReason();
    if (!ignoredReason)
      return;
    trace.traceTransitionIgnored(trans);
    var pending = trans.router.globals.transition;
    // The user clicked a link going back to the *current state* ('A')
    // However, there is also a pending transition in flight (to 'B')
    // Abort the transition to 'B' because the user now wants to be back at 'A'.
    if (ignoredReason === 'SameAsCurrent' && pending) {
      pending.abort();
    }
    return Rejection.ignored().toPromise();
  }
  var registerIgnoredTransitionHook = function (transitionService) {
    return transitionService.onBefore({}, ignoredHook, { priority: -9999 });
  };

  /** @module hooks */ /** */
  /**
   * A [[TransitionHookFn]] that rejects the Transition if it is invalid
   *
   * This hook is invoked at the end of the onBefore phase.
   * If the transition is invalid (for example, param values do not validate)
   * then the transition is rejected.
   */
  function invalidTransitionHook(trans) {
    if (!trans.valid()) {
      throw new Error(trans.error());
    }
  }
  var registerInvalidTransitionHook = function (transitionService) {
    return transitionService.onBefore({}, invalidTransitionHook, { priority: -10000 });
  };

  /**
   * @coreapi
   * @module transition
   */
  /** for typedoc */
  /**
   * The default [[Transition]] options.
   *
   * Include this object when applying custom defaults:
   * let reloadOpts = { reload: true, notify: true }
   * let options = defaults(theirOpts, customDefaults, defaultOptions);
   */
  var defaultTransOpts = {
    location: true,
    relative: null,
    inherit: false,
    notify: true,
    reload: false,
    custom: {},
    current: function () { return null; },
    source: "unknown"
  };
  /**
   * This class provides services related to Transitions.
   *
   * - Most importantly, it allows global Transition Hooks to be registered.
   * - It allows the default transition error handler to be set.
   * - It also has a factory function for creating new [[Transition]] objects, (used internally by the [[StateService]]).
   *
   * At bootstrap, [[UIRouter]] creates a single instance (singleton) of this class.
   */
  var TransitionService = /** @class */ (function () {
    /** @hidden */
    function TransitionService(_router) {
      /** @hidden */
      this._transitionCount = 0;
      /** @hidden The transition hook types, such as `onEnter`, `onStart`, etc */
      this._eventTypes = [];
      /** @hidden The registered transition hooks */
      this._registeredHooks = {};
      /** @hidden The  paths on a criteria object */
      this._criteriaPaths = {};
      this._router = _router;
      this.$view = _router.viewService;
      this._deregisterHookFns = {};
      this._pluginapi = createProxyFunctions(val(this), {}, val(this), [
        '_definePathType',
        '_defineEvent',
        '_getPathTypes',
        '_getEvents',
        'getHooks',
      ]);
      this._defineCorePaths();
      this._defineCoreEvents();
      this._registerCoreTransitionHooks();
    }
    /**
     * Registers a [[TransitionHookFn]], called *while a transition is being constructed*.
     *
     * Registers a transition lifecycle hook, which is invoked during transition construction.
     *
     * This low level hook should only be used by plugins.
     * This can be a useful time for plugins to add resolves or mutate the transition as needed.
     * The Sticky States plugin uses this hook to modify the treechanges.
     *
     * ### Lifecycle
     *
     * `onCreate` hooks are invoked *while a transition is being constructed*.
     *
     * ### Return value
     *
     * The hook's return value is ignored
     *
     * @internalapi
     * @param criteria defines which Transitions the Hook should be invoked for.
     * @param callback the hook function which will be invoked.
     * @param options the registration options
     * @returns a function which deregisters the hook.
     */
    TransitionService.prototype.onCreate = function (criteria, callback, options) { return; };
    /** @inheritdoc */
    TransitionService.prototype.onBefore = function (criteria, callback, options) { return; };
    /** @inheritdoc */
    TransitionService.prototype.onStart = function (criteria, callback, options) { return; };
    /** @inheritdoc */
    TransitionService.prototype.onExit = function (criteria, callback, options) { return; };
    /** @inheritdoc */
    TransitionService.prototype.onRetain = function (criteria, callback, options) { return; };
    /** @inheritdoc */
    TransitionService.prototype.onEnter = function (criteria, callback, options) { return; };
    /** @inheritdoc */
    TransitionService.prototype.onFinish = function (criteria, callback, options) { return; };
    /** @inheritdoc */
    TransitionService.prototype.onSuccess = function (criteria, callback, options) { return; };
    /** @inheritdoc */
    TransitionService.prototype.onError = function (criteria, callback, options) { return; };
    /**
     * dispose
     * @internalapi
     */
    TransitionService.prototype.dispose = function (router) {
      values(this._registeredHooks).forEach(function (hooksArray) { return hooksArray.forEach(function (hook) {
        hook._deregistered = true;
        removeFrom(hooksArray, hook);
      }); });
    };
    /**
     * Creates a new [[Transition]] object
     *
     * This is a factory function for creating new Transition objects.
     * It is used internally by the [[StateService]] and should generally not be called by application code.
     *
     * @param fromPath the path to the current state (the from state)
     * @param targetState the target state (destination)
     * @returns a Transition
     */
    TransitionService.prototype.create = function (fromPath, targetState) {
      return new Transition(fromPath, targetState, this._router);
    };
    /** @hidden */
    TransitionService.prototype._defineCoreEvents = function () {
      var Phase = exports.TransitionHookPhase;
      var TH = TransitionHook;
      var paths = this._criteriaPaths;
      var NORMAL_SORT = false, REVERSE_SORT = true;
      var ASYNCHRONOUS = false, SYNCHRONOUS = true;
      this._defineEvent("onCreate", Phase.CREATE, 0, paths.to, NORMAL_SORT, TH.LOG_REJECTED_RESULT, TH.THROW_ERROR, SYNCHRONOUS);
      this._defineEvent("onBefore", Phase.BEFORE, 0, paths.to);
      this._defineEvent("onStart", Phase.RUN, 0, paths.to);
      this._defineEvent("onExit", Phase.RUN, 100, paths.exiting, REVERSE_SORT);
      this._defineEvent("onRetain", Phase.RUN, 200, paths.retained);
      this._defineEvent("onEnter", Phase.RUN, 300, paths.entering);
      this._defineEvent("onFinish", Phase.RUN, 400, paths.to);
      this._defineEvent("onSuccess", Phase.SUCCESS, 0, paths.to, NORMAL_SORT, TH.LOG_REJECTED_RESULT, TH.LOG_ERROR, SYNCHRONOUS);
      this._defineEvent("onError", Phase.ERROR, 0, paths.to, NORMAL_SORT, TH.LOG_REJECTED_RESULT, TH.LOG_ERROR, SYNCHRONOUS);
    };
    /** @hidden */
    TransitionService.prototype._defineCorePaths = function () {
      var STATE = exports.TransitionHookScope.STATE, TRANSITION = exports.TransitionHookScope.TRANSITION;
      this._definePathType("to", TRANSITION);
      this._definePathType("from", TRANSITION);
      this._definePathType("exiting", STATE);
      this._definePathType("retained", STATE);
      this._definePathType("entering", STATE);
    };
    /** @hidden */
    TransitionService.prototype._defineEvent = function (name, hookPhase, hookOrder, criteriaMatchPath, reverseSort, getResultHandler, getErrorHandler, synchronous) {
      if (reverseSort === void 0) { reverseSort = false; }
      if (getResultHandler === void 0) { getResultHandler = TransitionHook.HANDLE_RESULT; }
      if (getErrorHandler === void 0) { getErrorHandler = TransitionHook.REJECT_ERROR; }
      if (synchronous === void 0) { synchronous = false; }
      var eventType = new TransitionEventType(name, hookPhase, hookOrder, criteriaMatchPath, reverseSort, getResultHandler, getErrorHandler, synchronous);
      this._eventTypes.push(eventType);
      makeEvent(this, this, eventType);
    };

    /** @hidden */
    TransitionService.prototype._getEvents = function (phase) {
      var transitionHookTypes = isDefined(phase) ?
        this._eventTypes.filter(function (type) { return type.hookPhase === phase; }) :
        this._eventTypes.slice();
      return transitionHookTypes.sort(function (l, r) {
        var cmpByPhase = l.hookPhase - r.hookPhase;
        return cmpByPhase === 0 ? l.hookOrder - r.hookOrder : cmpByPhase;
      });
    };
    /**
     * Adds a Path to be used as a criterion against a TreeChanges path
     *
     * For example: the `exiting` path in [[HookMatchCriteria]] is a STATE scoped path.
     * It was defined by calling `defineTreeChangesCriterion('exiting', TransitionHookScope.STATE)`
     * Each state in the exiting path is checked against the criteria and returned as part of the match.
     *
     * Another example: the `to` path in [[HookMatchCriteria]] is a TRANSITION scoped path.
     * It was defined by calling `defineTreeChangesCriterion('to', TransitionHookScope.TRANSITION)`
     * Only the tail of the `to` path is checked against the criteria and returned as part of the match.
     *
     * @hidden
     */
    TransitionService.prototype._definePathType = function (name, hookScope) {
      this._criteriaPaths[name] = { name: name, scope: hookScope };
    };
    /** * @hidden */
    TransitionService.prototype._getPathTypes = function () {
      return this._criteriaPaths;
    };
    /** @hidden */
    TransitionService.prototype.getHooks = function (hookName) {
      return this._registeredHooks[hookName];
    };
    /** @hidden */
    TransitionService.prototype._registerCoreTransitionHooks = function () {
      var fns = this._deregisterHookFns;
      fns.addCoreResolves = registerAddCoreResolvables(this);
      fns.ignored = registerIgnoredTransitionHook(this);
      fns.invalid = registerInvalidTransitionHook(this);
      // Wire up redirectTo hook
      fns.redirectTo = registerRedirectToHook(this);
      // Wire up onExit/Retain/Enter state hooks
      fns.onExit = registerOnExitHook(this);
      fns.onRetain = registerOnRetainHook(this);
      fns.onEnter = registerOnEnterHook(this);
      // Wire up Resolve hooks
      fns.eagerResolve = registerEagerResolvePath(this);
      fns.lazyResolve = registerLazyResolveState(this);
      // Wire up the View management hooks
      fns.loadViews = registerLoadEnteringViews(this);
      fns.activateViews = registerActivateViews(this);
      // Updates global state after a transition
      fns.updateGlobals = registerUpdateGlobalState(this);
      // After globals.current is updated at priority: 10000
      fns.updateUrl = registerUpdateUrl(this);
      // Lazy load state trees
      fns.lazyLoad = registerLazyLoadHook(this);
    };
    return TransitionService;
  }());

  /**
   * @coreapi
   * @module state
   */
  /** */
  /**
   * Provides state related service functions
   *
   * This class provides services related to ui-router states.
   * An instance of this class is located on the global [[UIRouter]] object.
   */
  var StateService = /** @class */ (function () {
    /** @internalapi */
    function StateService(router) {
      this.router = router;
      /** @internalapi */
      this.invalidCallbacks = [];
      /** @hidden */
      this._defaultErrorHandler = function $defaultErrorHandler($error$) {
        if ($error$ instanceof Error && $error$.stack) {
          console.error($error$);
          console.error($error$.stack);
        }
        else if ($error$ instanceof Rejection) {
          console.error($error$.toString());
          if ($error$.detail && $error$.detail.stack)
            console.error($error$.detail.stack);
        }
        else {
          console.error($error$);
        }
      };
      var getters = ['current', '$current', 'params', 'transition'];
      var boundFns = Object.keys(StateService.prototype).filter(not(inArray(getters)));
      createProxyFunctions(val(StateService.prototype), this, val(this), boundFns);
    }
    Object.defineProperty(StateService.prototype, "transition", {
      /**
       * The [[Transition]] currently in progress (or null)
       *
       * This is a passthrough through to [[UIRouterGlobals.transition]]
       */
      get: function () { return this.router.globals.transition; },
      enumerable: true,
      configurable: true
    });
    Object.defineProperty(StateService.prototype, "params", {
      /**
       * The latest successful state parameters
       *
       * This is a passthrough through to [[UIRouterGlobals.params]]
       */
      get: function () { return this.router.globals.params; },
      enumerable: true,
      configurable: true
    });
    Object.defineProperty(StateService.prototype, "current", {
      /**
       * The current [[StateDeclaration]]
       *
       * This is a passthrough through to [[UIRouterGlobals.current]]
       */
      get: function () { return this.router.globals.current; },
      enumerable: true,
      configurable: true
    });
    Object.defineProperty(StateService.prototype, "$current", {
      /**
       * The current [[StateObject]]
       *
       * This is a passthrough through to [[UIRouterGlobals.$current]]
       */
      get: function () { return this.router.globals.$current; },
      enumerable: true,
      configurable: true
    });
    /** @internalapi */
    StateService.prototype.dispose = function () {
      this.defaultErrorHandler(noop$1);
      this.invalidCallbacks = [];
    };
    /**
     * Handler for when [[transitionTo]] is called with an invalid state.
     *
     * Invokes the [[onInvalid]] callbacks, in natural order.
     * Each callback's return value is checked in sequence until one of them returns an instance of TargetState.
     * The results of the callbacks are wrapped in $q.when(), so the callbacks may return promises.
     *
     * If a callback returns an TargetState, then it is used as arguments to $state.transitionTo() and the result returned.
     *
     * @internalapi
     */
    StateService.prototype._handleInvalidTargetState = function (fromPath, toState) {
      var _this = this;
      var fromState = PathUtils.makeTargetState(this.router.stateRegistry, fromPath);
      var globals = this.router.globals;
      var latestThing = function () { return globals.transitionHistory.peekTail(); };
      var latest = latestThing();
      var callbackQueue = new Queue(this.invalidCallbacks.slice());
      var injector = new ResolveContext(fromPath).injector();
      var checkForRedirect = function (result) {
        if (!(result instanceof TargetState)) {
          return;
        }
        var target = result;
        // Recreate the TargetState, in case the state is now defined.
        target = _this.target(target.identifier(), target.params(), target.options());
        if (!target.valid()) {
          return Rejection.invalid(target.error()).toPromise();
        }
        if (latestThing() !== latest) {
          return Rejection.superseded().toPromise();
        }
        return _this.transitionTo(target.identifier(), target.params(), target.options());
      };
      function invokeNextCallback() {
        var nextCallback = callbackQueue.dequeue();
        if (nextCallback === undefined)
          return Rejection.invalid(toState.error()).toPromise();
        var callbackResult = services.$q.when(nextCallback(toState, fromState, injector));
        return callbackResult.then(checkForRedirect).then(function (result) { return result || invokeNextCallback(); });
      }
      return invokeNextCallback();
    };
    /**
     * Registers an Invalid State handler
     *
     * Registers a [[OnInvalidCallback]] function to be invoked when [[StateService.transitionTo]]
     * has been called with an invalid state reference parameter
     *
     * Example:
     * ```js
     * stateService.onInvalid(function(to, from, injector) {
     *   if (to.name() === 'foo') {
     *     let lazyLoader = injector.get('LazyLoadService');
     *     return lazyLoader.load('foo')
     *         .then(() => stateService.target('foo'));
     *   }
     * });
     * ```
     *
     * @param {function} callback invoked when the toState is invalid
     *   This function receives the (invalid) toState, the fromState, and an injector.
     *   The function may optionally return a [[TargetState]] or a Promise for a TargetState.
     *   If one is returned, it is treated as a redirect.
     *
     * @returns a function which deregisters the callback
     */
    StateService.prototype.onInvalid = function (callback) {
      this.invalidCallbacks.push(callback);
      return function deregisterListener() {
        removeFrom(this.invalidCallbacks)(callback);
      }.bind(this);
    };
    /**
     * Reloads the current state
     *
     * A method that force reloads the current state, or a partial state hierarchy.
     * All resolves are re-resolved, and components reinstantiated.
     *
     * #### Example:
     * ```js
     * let app angular.module('app', ['ui.router']);
     *
     * app.controller('ctrl', function ($scope, $state) {
     *   $scope.reload = function(){
     *     $state.reload();
     *   }
     * });
     * ```
     *
     * Note: `reload()` is just an alias for:
     *
     * ```js
     * $state.transitionTo($state.current, $state.params, {
     *   reload: true, inherit: false
     * });
     * ```
     *
     * @param reloadState A state name or a state object.
     *    If present, this state and all its children will be reloaded, but ancestors will not reload.
     *
     * #### Example:
     * ```js
     * //assuming app application consists of 3 states: 'contacts', 'contacts.detail', 'contacts.detail.item'
     * //and current state is 'contacts.detail.item'
     * let app angular.module('app', ['ui.router']);
     *
     * app.controller('ctrl', function ($scope, $state) {
     *   $scope.reload = function(){
     *     //will reload 'contact.detail' and nested 'contact.detail.item' states
     *     $state.reload('contact.detail');
     *   }
     * });
     * ```
     *
     * @returns A promise representing the state of the new transition. See [[StateService.go]]
     */
    StateService.prototype.reload = function (reloadState) {
      return this.transitionTo(this.current, this.params, {
        reload: isDefined(reloadState) ? reloadState : true,
        inherit: false,
        notify: false,
      });
    };

    /**
     * Transition to a different state and/or parameters
     *
     * Convenience method for transitioning to a new state.
     *
     * `$state.go` calls `$state.transitionTo` internally but automatically sets options to
     * `{ location: true, inherit: true, relative: router.globals.$current, notify: true }`.
     * This allows you to use either an absolute or relative `to` argument (because of `relative: router.globals.$current`).
     * It also allows you to specify * only the parameters you'd like to update, while letting unspecified parameters
     * inherit from the current parameter values (because of `inherit: true`).
     *
     * #### Example:
     * ```js
     * let app = angular.module('app', ['ui.router']);
     *
     * app.controller('ctrl', function ($scope, $state) {
     *   $scope.changeState = function () {
     *     $state.go('contact.detail');
     *   };
     * });
     * ```
     *
     * @param to Absolute state name, state object, or relative state path (relative to current state).
     *
     * Some examples:
     *
     * - `$state.go('contact.detail')` - will go to the `contact.detail` state
     * - `$state.go('^')` - will go to the parent state
     * - `$state.go('^.sibling')` - if current state is `home.child`, will go to the `home.sibling` state
     * - `$state.go('.child.grandchild')` - if current state is home, will go to the `home.child.grandchild` state
     *
     * @param params A map of the parameters that will be sent to the state, will populate $stateParams.
     *
     *    Any parameters that are not specified will be inherited from current parameter values (because of `inherit: true`).
     *    This allows, for example, going to a sibling state that shares parameters defined by a parent state.
     *
     * @param options Transition options
     *
     * @returns {promise} A promise representing the state of the new transition.
     */
    StateService.prototype.go = function (to, params, options) {
      var defautGoOpts = { relative: this.$current, inherit: true };
      var transOpts = defaults(options, defautGoOpts, defaultTransOpts);
      return this.transitionTo(to, params, transOpts);
    };

    /**
     * Creates a [[TargetState]]
     *
     * This is a factory method for creating a TargetState
     *
     * This may be returned from a Transition Hook to redirect a transition, for example.
     */
    StateService.prototype.target = function (identifier, params, options) {
      if (options === void 0) { options = {}; }
      // If we're reloading, find the state object to reload from
      if (isObject(options.reload) && !options.reload.name)
        throw new Error('Invalid reload state object');
      var reg = this.router.stateRegistry;
      options.reloadState = options.reload === true ? reg.root() : reg.matcher.find(options.reload, options.relative);
      if (options.reload && !options.reloadState)
        throw new Error("No such reload state '" + (isString(options.reload) ? options.reload : options.reload.name) + "'");
      return new TargetState(this.router.stateRegistry, identifier, params, options);
    };

    StateService.prototype.getCurrentPath = function () {
      var _this = this;
      var globals = this.router.globals;
      var latestSuccess = globals.successfulTransitions.peekTail();
      var rootPath = function () { return [new PathNode(_this.router.stateRegistry.root())]; };
      return latestSuccess ? latestSuccess.treeChanges().to : rootPath();
    };
    /**
     * Low-level method for transitioning to a new state.
     *
     * The [[go]] method (which uses `transitionTo` internally) is recommended in most situations.
     *
     * #### Example:
     * ```js
     * let app = angular.module('app', ['ui.router']);
     *
     * app.controller('ctrl', function ($scope, $state) {
     *   $scope.changeState = function () {
     *     $state.transitionTo('contact.detail');
     *   };
     * });
     * ```
     *
     * @param to State name or state object.
     * @param toParams A map of the parameters that will be sent to the state,
     *      will populate $stateParams.
     * @param options Transition options
     *
     * @returns A promise representing the state of the new transition. See [[go]]
     */
    StateService.prototype.transitionTo = function (to, toParams, options) {
      var _this = this;
      if (toParams === void 0) { toParams = {}; }
      if (options === void 0) { options = {}; }
      var router = this.router;
      var globals = router.globals;
      options = defaults(options, defaultTransOpts);
      var getCurrent = function () {
        return globals.transition;
      };
      options = extend(options, { current: getCurrent });
      var ref = this.target(to, toParams, options);
      var currentPath = this.getCurrentPath();
      if (!ref.exists())
        return this._handleInvalidTargetState(currentPath, ref);
      if (!ref.valid())
        return silentRejection(ref.error());
      /**
       * Special handling for Ignored, Aborted, and Redirected transitions
       *
       * The semantics for the transition.run() promise and the StateService.transitionTo()
       * promise differ. For instance, the run() promise may be rejected because it was
       * IGNORED, but the transitionTo() promise is resolved because from the user perspective
       * no error occurred.  Likewise, the transition.run() promise may be rejected because of
       * a Redirect, but the transitionTo() promise is chained to the new Transition's promise.
       */
      var rejectedTransitionHandler = function (transition) { return function (error) {
        if (error instanceof Rejection) {
          var isLatest = router.globals.lastStartedTransitionId === transition.$id;
          if (error.type === exports.RejectType.IGNORED) {
            isLatest && router.urlRouter.update();
            // Consider ignored `Transition.run()` as a successful `transitionTo`
            return services.$q.when(globals.current);
          }
          var detail = error.detail;
          if (error.type === exports.RejectType.SUPERSEDED && error.redirected && detail instanceof TargetState) {
            // If `Transition.run()` was redirected, allow the `transitionTo()` promise to resolve successfully
            // by returning the promise for the new (redirect) `Transition.run()`.
            var redirect = transition.redirect(detail);
            return redirect.run().catch(rejectedTransitionHandler(redirect));
          }
          if (error.type === exports.RejectType.ABORTED) {
            isLatest && router.urlRouter.update();
            return services.$q.reject(error);
          }
        }
        var errorHandler = _this.defaultErrorHandler();
        errorHandler(error);
        return services.$q.reject(error);
      }; };
      var transition = this.router.transitionService.create(currentPath, ref);
      var transitionToPromise = transition.run().catch(rejectedTransitionHandler(transition));
      silenceUncaughtInPromise(transitionToPromise); // issue #2676
      // Return a promise for the transition, which also has the transition object on it.
      return extend(transitionToPromise, { transition: transition });
    };

    /**
     * Checks if the current state *is* the provided state
     *
     * Similar to [[includes]] but only checks for the full state name.
     * If params is supplied then it will be tested for strict equality against the current
     * active params object, so all params must match with none missing and no extras.
     *
     * #### Example:
     * ```js
     * $state.$current.name = 'contacts.details.item';
     *
     * // absolute name
     * $state.is('contact.details.item'); // returns true
     * $state.is(contactDetailItemStateObject); // returns true
     * ```
     *
     * // relative name (. and ^), typically from a template
     * // E.g. from the 'contacts.details' template
     * ```html
     * <div ng-class="{highlighted: $state.is('.item')}">Item</div>
     * ```
     *
     * @param stateOrName The state name (absolute or relative) or state object you'd like to check.
     * @param params A param object, e.g. `{sectionId: section.id}`, that you'd like
     * to test against the current active state.
     * @param options An options object. The options are:
     *   - `relative`: If `stateOrName` is a relative state name and `options.relative` is set, .is will
     *     test relative to `options.relative` state (or name).
     *
     * @returns Returns true if it is the state.
     */
    StateService.prototype.is = function (stateOrName, params, options) {
      options = defaults(options, { relative: this.$current });
      var state = this.router.stateRegistry.matcher.find(stateOrName, options.relative);
      if (!isDefined(state))
        return undefined;
      if (this.$current !== state)
        return false;
      if (!params)
        return true;
      var schema = state.parameters({ inherit: true, matchingKeys: params });
      return Param.equals(schema, Param.values(schema, params), this.params);
    };

    /**
     * Checks if the current state *includes* the provided state
     *
     * A method to determine if the current active state is equal to or is the child of the
     * state stateName. If any params are passed then they will be tested for a match as well.
     * Not all the parameters need to be passed, just the ones you'd like to test for equality.
     *
     * #### Example when `$state.$current.name === 'contacts.details.item'`
     * ```js
     * // Using partial names
     * $state.includes("contacts"); // returns true
     * $state.includes("contacts.details"); // returns true
     * $state.includes("contacts.details.item"); // returns true
     * $state.includes("contacts.list"); // returns false
     * $state.includes("about"); // returns false
     * ```
     *
     * #### Glob Examples when `* $state.$current.name === 'contacts.details.item.url'`:
     * ```js
     * $state.includes("*.details.*.*"); // returns true
     * $state.includes("*.details.**"); // returns true
     * $state.includes("**.item.**"); // returns true
     * $state.includes("*.details.item.url"); // returns true
     * $state.includes("*.details.*.url"); // returns true
     * $state.includes("*.details.*"); // returns false
     * $state.includes("item.**"); // returns false
     * ```
     *
     * @param stateOrName A partial name, relative name, glob pattern,
     *   or state object to be searched for within the current state name.
     * @param params A param object, e.g. `{sectionId: section.id}`,
     *   that you'd like to test against the current active state.
     * @param options An options object. The options are:
     *   - `relative`: If `stateOrName` is a relative state name and `options.relative` is set, .is will
     *     test relative to `options.relative` state (or name).
     *
     * @returns {boolean} Returns true if it does include the state
     */
    StateService.prototype.includes = function (stateOrName, params, options) {
      options = defaults(options, { relative: this.$current });
      var glob = isString(stateOrName) && Glob.fromString(stateOrName);
      if (glob) {
        if (!glob.matches(this.$current.name))
          return false;
        stateOrName = this.$current.name;
      }
      var state = this.router.stateRegistry.matcher.find(stateOrName, options.relative), include = this.$current.includes;
      if (!isDefined(state))
        return undefined;
      if (!isDefined(include[state.name]))
        return false;
      if (!params)
        return true;
      var schema = state.parameters({ inherit: true, matchingKeys: params });
      return Param.equals(schema, Param.values(schema, params), this.params);
    };

    /**
     * Generates a URL for a state and parameters
     *
     * Returns the url for the given state populated with the given params.
     *
     * #### Example:
     * ```js
     * expect($state.href("about.person", { person: "bob" })).toEqual("/about/bob");
     * ```
     *
     * @param stateOrName The state name or state object you'd like to generate a url from.
     * @param params An object of parameter values to fill the state's required parameters.
     * @param options Options object. The options are:
     *
     * @returns {string} compiled state url
     */
    StateService.prototype.href = function (stateOrName, params, options) {
      var defaultHrefOpts = {
        lossy: true,
        inherit: true,
        absolute: false,
        relative: this.$current,
      };
      options = defaults(options, defaultHrefOpts);
      params = params || {};
      var state = this.router.stateRegistry.matcher.find(stateOrName, options.relative);
      if (!isDefined(state))
        return null;
      if (options.inherit)
        params = this.params.$inherit(params, this.$current, state);
      var nav = (state && options.lossy) ? state.navigable : state;
      if (!nav || nav.url === undefined || nav.url === null) {
        return null;
      }
      return this.router.urlRouter.href(nav.url, params, {
        absolute: options.absolute,
      });
    };

    /**
     * Sets or gets the default [[transitionTo]] error handler.
     *
     * The error handler is called when a [[Transition]] is rejected or when any error occurred during the Transition.
     * This includes errors caused by resolves and transition hooks.
     *
     * Note:
     * This handler does not receive certain Transition rejections.
     * Redirected and Ignored Transitions are not considered to be errors by [[StateService.transitionTo]].
     *
     * The built-in default error handler logs the error to the console.
     *
     * You can provide your own custom handler.
     *
     * #### Example:
     * ```js
     * stateService.defaultErrorHandler(function() {
     *   // Do not log transitionTo errors
     * });
     * ```
     *
     * @param handler a global error handler function
     * @returns the current global error handler
     */
    StateService.prototype.defaultErrorHandler = function (handler) {
      return this._defaultErrorHandler = handler || this._defaultErrorHandler;
    };
    StateService.prototype.get = function (stateOrName, base) {
      var reg = this.router.stateRegistry;
      if (arguments.length === 0)
        return reg.get();
      return reg.get(stateOrName, base || this.$current);
    };
    /**
     * Lazy loads a state
     *
     * Explicitly runs a state's [[StateDeclaration.lazyLoad]] function.
     *
     * @param stateOrName the state that should be lazy loaded
     * @param transition the optional Transition context to use (if the lazyLoad function requires an injector, etc)
     * Note: If no transition is provided, a noop transition is created using the from the current state to the current state.
     * This noop transition is not actually run.
     *
     * @returns a promise to lazy load
     */
    StateService.prototype.lazyLoad = function (stateOrName, transition) {
      var state = this.get(stateOrName);
      if (!state || !state.lazyLoad)
        throw new Error("Can not lazy load " + stateOrName);
      var currentPath = this.getCurrentPath();
      var target = PathUtils.makeTargetState(this.router.stateRegistry, currentPath);
      transition = transition || this.router.transitionService.create(currentPath, target);
      return lazyLoadState(transition, state);
    };
    return StateService;
  }());

  /**
   * # Transition subsystem
   *
   * This module contains APIs related to a Transition.
   *
   * See:
   * - [[TransitionService]]
   * - [[Transition]]
   * - [[HookFn]], [[TransitionHookFn]], [[TransitionStateHookFn]], [[HookMatchCriteria]], [[HookResult]]
   *
   * @coreapi
   * @preferred
   * @module transition
   */ /** for typedoc */

  /**
   * @internalapi
   * @module vanilla
   */
  /** */
  /**
   * An angular1-like promise api
   *
   * This object implements four methods similar to the
   * [angular 1 promise api](https://docs.angularjs.org/api/ng/service/$q)
   *
   * UI-Router evolved from an angular 1 library to a framework agnostic library.
   * However, some of the `@uirouter/core` code uses these ng1 style APIs to support ng1 style dependency injection.
   *
   * This API provides native ES6 promise support wrapped as a $q-like API.
   * Internally, UI-Router uses this $q object to perform promise operations.
   * The `angular-ui-router` (ui-router for angular 1) uses the $q API provided by angular.
   *
   * $q-like promise api
   */
  var $q = {
    /** Normalizes a value as a promise */
    when: function (val) { return new Promise(function (resolve, reject) { return resolve(val); }); },
    /** Normalizes a value as a promise rejection */
    reject: function (val) { return new Promise(function (resolve, reject) { reject(val); }); },
    /** @returns a deferred object, which has `resolve` and `reject` functions */
    defer: function () {
      var deferred = {};
      deferred.promise = new Promise(function (resolve, reject) {
        deferred.resolve = resolve;
        deferred.reject = reject;
      });
      return deferred;
    },
    /** Like Promise.all(), but also supports object key/promise notation like $q */
    all: function (promises) {
      if (isArray(promises)) {
        return Promise.all(promises);
      }
      if (isObject(promises)) {
        // Convert promises map to promises array.
        // When each promise resolves, map it to a tuple { key: key, val: val }
        var chain = Object.keys(promises)
          .map(function (key) { return promises[key].then(function (val) { return ({ key: key, val: val }); }); });
        // Then wait for all promises to resolve, and convert them back to an object
        return $q.all(chain).then(function (values) {
          return values.reduce(function (acc, tuple) { acc[tuple.key] = tuple.val; return acc; }, {});
        });
      }
    }
  };

  /**
   * @internalapi
   * @module vanilla
   */
  /** */
// globally available injectables
  var globals = {};
  var STRIP_COMMENTS = /((\/\/.*$)|(\/\*[\s\S]*?\*\/))/mg;
  var ARGUMENT_NAMES = /([^\s,]+)/g;
  /**
   * A basic angular1-like injector api
   *
   * This object implements four methods similar to the
   * [angular 1 dependency injector](https://docs.angularjs.org/api/auto/service/$injector)
   *
   * UI-Router evolved from an angular 1 library to a framework agnostic library.
   * However, some of the `@uirouter/core` code uses these ng1 style APIs to support ng1 style dependency injection.
   *
   * This object provides a naive implementation of a globally scoped dependency injection system.
   * It supports the following DI approaches:
   *
   * ### Function parameter names
   *
   * A function's `.toString()` is called, and the parameter names are parsed.
   * This only works when the parameter names aren't "mangled" by a minifier such as UglifyJS.
   *
   * ```js
   * function injectedFunction(FooService, BarService) {
 *   // FooService and BarService are injected
 * }
   * ```
   *
   * ### Function annotation
   *
   * A function may be annotated with an array of dependency names as the `$inject` property.
   *
   * ```js
   * injectedFunction.$inject = [ 'FooService', 'BarService' ];
   * function injectedFunction(fs, bs) {
 *   // FooService and BarService are injected as fs and bs parameters
 * }
   * ```
   *
   * ### Array notation
   *
   * An array provides the names of the dependencies to inject (as strings).
   * The function is the last element of the array.
   *
   * ```js
   * [ 'FooService', 'BarService', function (fs, bs) {
 *   // FooService and BarService are injected as fs and bs parameters
 * }]
   * ```
   *
   * @type {$InjectorLike}
   */
  var $injector = {
    /** Gets an object from DI based on a string token */
    get: function (name) { return globals[name]; },
    /** Returns true if an object named `name` exists in global DI */
    has: function (name) { return $injector.get(name) != null; },
    /**
     * Injects a function
     *
     * @param fn the function to inject
     * @param context the function's `this` binding
     * @param locals An object with additional DI tokens and values, such as `{ someToken: { foo: 1 } }`
     */
    invoke: function (fn, context, locals) {
      var all = extend({}, globals, locals || {});
      var params = $injector.annotate(fn);
      var ensureExist = assertPredicate(function (key) { return all.hasOwnProperty(key); }, function (key) { return "DI can't find injectable: '" + key + "'"; });
      var args = params.filter(ensureExist).map(function (x) { return all[x]; });
      if (isFunction(fn))
        return fn.apply(context, args);
      else
        return fn.slice(-1)[0].apply(context, args);
    },
    /**
     * Returns a function's dependencies
     *
     * Analyzes a function (or array) and returns an array of DI tokens that the function requires.
     * @return an array of `string`s
     */
    annotate: function (fn) {
      if (!isInjectable(fn))
        throw new Error("Not an injectable function: " + fn);
      if (fn && fn.$inject)
        return fn.$inject;
      if (isArray(fn))
        return fn.slice(0, -1);
      var fnStr = fn.toString().replace(STRIP_COMMENTS, '');
      var result = fnStr.slice(fnStr.indexOf('(') + 1, fnStr.indexOf(')')).match(ARGUMENT_NAMES);
      return result || [];
    }
  };

  /**
   * @internalapi
   * @module vanilla
   */
  /** */
  var keyValsToObjectR = function (accum, _a) {
    var key = _a[0], val = _a[1];
    if (!accum.hasOwnProperty(key)) {
      accum[key] = val;
    }
    else if (isArray(accum[key])) {
      accum[key].push(val);
    }
    else {
      accum[key] = [accum[key], val];
    }
    return accum;
  };
  var getParams = function (queryString) {
    return queryString.split("&").filter(identity).map(splitEqual).reduce(keyValsToObjectR, {});
  };
  function parseUrl$1(url) {
    var orEmptyString = function (x) { return x || ""; };
    var _a = splitHash(url).map(orEmptyString), beforehash = _a[0], hash = _a[1];
    var _b = splitQuery(beforehash).map(orEmptyString), path = _b[0], search = _b[1];
    return { path: path, search: search, hash: hash, url: url };
  }
  var buildUrl = function (loc) {
    var path = loc.path();
    var searchObject = loc.search();
    var hash = loc.hash();
    var search = Object.keys(searchObject).map(function (key) {
      var param = searchObject[key];
      var vals = isArray(param) ? param : [param];
      return vals.map(function (val) { return key + "=" + val; });
    }).reduce(unnestR, []).join("&");
    return path + (search ? "?" + search : "") + (hash ? "#" + hash : "");
  };
  function locationPluginFactory(name, isHtml5, serviceClass, configurationClass) {
    return function (router) {
      var service = router.locationService = new serviceClass(router);
      var configuration = router.locationConfig = new configurationClass(router, isHtml5);
      function dispose(router) {
        router.dispose(service);
        router.dispose(configuration);
      }
      return { name: name, service: service, configuration: configuration, dispose: dispose };
    };
  }

  /**
   * @internalapi
   * @module vanilla
   */ /** */
  /** A base `LocationServices` */
  var BaseLocationServices = /** @class */ (function () {
    function BaseLocationServices(router, fireAfterUpdate) {
      var _this = this;
      this.fireAfterUpdate = fireAfterUpdate;
      this._listener = function (evt) { return _this._listeners.forEach(function (cb) { return cb(evt); }); };
      this._listeners = [];
      this.hash = function () { return parseUrl$1(_this._get()).hash; };
      this.path = function () { return parseUrl$1(_this._get()).path; };
      this.search = function () { return getParams(parseUrl$1(_this._get()).search); };
      this._location = root.location;
      this._history = root.history;
    }
    BaseLocationServices.prototype.url = function (url, replace) {
      if (replace === void 0) { replace = true; }
      if (isDefined(url) && url !== this._get()) {
        this._set(null, null, url, replace);
        if (this.fireAfterUpdate) {
          this._listeners.forEach(function (cb) { return cb({ url: url }); });
        }
      }
      return buildUrl(this);
    };
    BaseLocationServices.prototype.onChange = function (cb) {
      var _this = this;
      this._listeners.push(cb);
      return function () { return removeFrom(_this._listeners, cb); };
    };
    BaseLocationServices.prototype.dispose = function (router) {
      deregAll(this._listeners);
    };
    return BaseLocationServices;
  }());

  var __extends = (undefined && undefined.__extends) || (function () {
    var extendStatics = Object.setPrototypeOf ||
      ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
      function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
    return function (d, b) {
      extendStatics(d, b);
      function __() { this.constructor = d; }
      d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
    };
  })();
  /**
   * @internalapi
   * @module vanilla
   */
  /** */
  /** A `LocationServices` that uses the browser hash "#" to get/set the current location */
  var HashLocationService = /** @class */ (function (_super) {
    __extends(HashLocationService, _super);
    function HashLocationService(router) {
      var _this = _super.call(this, router, false) || this;
      root.addEventListener('hashchange', _this._listener, false);
      return _this;
    }
    HashLocationService.prototype._get = function () {
      return trimHashVal(this._location.hash);
    };
    HashLocationService.prototype._set = function (state, title, url, replace) {
      this._location.hash = url;
    };
    HashLocationService.prototype.dispose = function (router) {
      _super.prototype.dispose.call(this, router);
      root.removeEventListener('hashchange', this._listener);
    };
    return HashLocationService;
  }(BaseLocationServices));

  var __extends$1 = (undefined && undefined.__extends) || (function () {
    var extendStatics = Object.setPrototypeOf ||
      ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
      function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
    return function (d, b) {
      extendStatics(d, b);
      function __() { this.constructor = d; }
      d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
    };
  })();
  /**
   * @internalapi
   * @module vanilla
   */
  /** */
  /** A `LocationServices` that gets/sets the current location from an in-memory object */
  var MemoryLocationService = /** @class */ (function (_super) {
    __extends$1(MemoryLocationService, _super);
    function MemoryLocationService(router) {
      return _super.call(this, router, true) || this;
    }
    MemoryLocationService.prototype._get = function () {
      return this._url;
    };
    MemoryLocationService.prototype._set = function (state, title, url, replace) {
      this._url = url;
    };
    return MemoryLocationService;
  }(BaseLocationServices));

  var __extends$2 = (undefined && undefined.__extends) || (function () {
    var extendStatics = Object.setPrototypeOf ||
      ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
      function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
    return function (d, b) {
      extendStatics(d, b);
      function __() { this.constructor = d; }
      d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
    };
  })();
  /**
   * A `LocationServices` that gets/sets the current location using the browser's `location` and `history` apis
   *
   * Uses `history.pushState` and `history.replaceState`
   */
  var PushStateLocationService = /** @class */ (function (_super) {
    __extends$2(PushStateLocationService, _super);
    function PushStateLocationService(router) {
      var _this = _super.call(this, router, true) || this;
      _this._config = router.urlService.config;
      root.addEventListener('popstate', _this._listener, false);
      return _this;
    }

    /**
     * Gets the base prefix without:
     * - trailing slash
     * - trailing filename
     * - protocol and hostname
     *
     * If <base href='/base/index.html'>, this returns '/base'.
     * If <base href='http://localhost:8080/base/index.html'>, this returns '/base'.
     *
     * See: https://html.spec.whatwg.org/dev/semantics.html#the-base-element
     */
    PushStateLocationService.prototype._getBasePrefix = function () {
      return stripFile(this._config.baseHref());
    };
    PushStateLocationService.prototype._get = function () {
      var _a = this._location, pathname = _a.pathname, hash = _a.hash, search = _a.search;
      search = splitQuery(search)[1]; // strip ? if found
      hash = splitHash(hash)[1]; // strip # if found
      var basePrefix = this._getBasePrefix();
      var exactMatch = pathname === this._config.baseHref();
      var startsWith = pathname.startsWith(basePrefix);
      pathname = exactMatch ? '/' : startsWith ? pathname.substring(basePrefix.length) : pathname;
      return pathname + (search ? '?' + search : '') + (hash ? '#' + hash : '');
    };
    PushStateLocationService.prototype._set = function (state, title, url, replace) {
      var fullUrl = this._getBasePrefix() + url;
      if (replace) {
        this._history.replaceState(state, title, fullUrl);
      }
      else {
        this._history.pushState(state, title, fullUrl);
      }
    };
    PushStateLocationService.prototype.dispose = function (router) {
      _super.prototype.dispose.call(this, router);
      root.removeEventListener('popstate', this._listener);
    };
    return PushStateLocationService;
  }(BaseLocationServices));

  /** A `LocationConfig` mock that gets/sets all config from an in-memory object */
  var MemoryLocationConfig = /** @class */ (function () {
    function MemoryLocationConfig() {
      var _this = this;
      this._baseHref = '';
      this._port = 80;
      this._protocol = "http";
      this._host = "localhost";
      this._hashPrefix = "";
      this.port = function () { return _this._port; };
      this.protocol = function () { return _this._protocol; };
      this.host = function () { return _this._host; };
      this.baseHref = function () { return _this._baseHref; };
      this.html5Mode = function () { return false; };
      this.hashPrefix = function (newval) { return isDefined(newval) ? _this._hashPrefix = newval : _this._hashPrefix; };
      this.dispose = noop$1;
    }
    return MemoryLocationConfig;
  }());

  /**
   * @internalapi
   * @module vanilla
   */
  /** */
  /** A `LocationConfig` that delegates to the browser's `location` object */
  var BrowserLocationConfig = /** @class */ (function () {
    function BrowserLocationConfig(router, _isHtml5) {
      if (_isHtml5 === void 0) { _isHtml5 = false; }
      this._isHtml5 = _isHtml5;
      this._baseHref = undefined;
      this._hashPrefix = "";
    }
    BrowserLocationConfig.prototype.port = function () {
      if (location.port) {
        return Number(location.port);
      }
      return this.protocol() === 'https' ? 443 : 80;
    };
    BrowserLocationConfig.prototype.protocol = function () {
      return location.protocol.replace(/:/g, '');
    };
    BrowserLocationConfig.prototype.host = function () {
      return location.hostname;
    };
    BrowserLocationConfig.prototype.html5Mode = function () {
      return this._isHtml5;
    };
    BrowserLocationConfig.prototype.hashPrefix = function (newprefix) {
      return isDefined(newprefix) ? this._hashPrefix = newprefix : this._hashPrefix;
    };

    BrowserLocationConfig.prototype.baseHref = function (href) {
      return isDefined(href) ? this._baseHref = href :
        isDefined(this._baseHref) ? this._baseHref : this.applyDocumentBaseHref();
    };
    BrowserLocationConfig.prototype.applyDocumentBaseHref = function () {
      var baseTag = document.getElementsByTagName("base")[0];
      return this._baseHref = baseTag ? baseTag.href.substr(location.origin.length) : "";
    };
    BrowserLocationConfig.prototype.dispose = function () { };
    return BrowserLocationConfig;
  }());

  /**
   * @internalapi
   * @module vanilla
   */
  /** */
  function servicesPlugin(router) {
    services.$injector = $injector;
    services.$q = $q;
    return { name: "vanilla.services", $q: $q, $injector: $injector, dispose: function () { return null; } };
  }
  /** A `UIRouterPlugin` uses the browser hash to get/set the current location */
  var hashLocationPlugin = locationPluginFactory('vanilla.hashBangLocation', false, HashLocationService, BrowserLocationConfig);
  /** A `UIRouterPlugin` that gets/sets the current location using the browser's `location` and `history` apis */
  var pushStateLocationPlugin = locationPluginFactory("vanilla.pushStateLocation", true, PushStateLocationService, BrowserLocationConfig);
  /** A `UIRouterPlugin` that gets/sets the current location from an in-memory object */
  var memoryLocationPlugin = locationPluginFactory("vanilla.memoryLocation", false, MemoryLocationService, MemoryLocationConfig);

  /**
   * @internalapi
   * @module vanilla
   */
  /** */

  /**
   * # Core classes and interfaces
   *
   * The classes and interfaces that are core to ui-router and do not belong
   * to a more specific subsystem (such as resolve).
   *
   * @coreapi
   * @preferred
   * @module core
   */ /** for typedoc */
  /** @internalapi */
  var UIRouterPluginBase = /** @class */ (function () {
    function UIRouterPluginBase() {
    }
    UIRouterPluginBase.prototype.dispose = function (router) { };
    return UIRouterPluginBase;
  }());

  /**
   * @coreapi
   * @module common
   */ /** */



  var index$1 = Object.freeze({
      root: root,
      fromJson: fromJson,
      toJson: toJson,
      forEach: forEach,
      extend: extend,
      equals: equals,
      identity: identity,
      noop: noop$1,
      createProxyFunctions: createProxyFunctions,
      inherit: inherit,
      inArray: inArray,
      _inArray: _inArray,
      removeFrom: removeFrom,
      _removeFrom: _removeFrom,
      pushTo: pushTo,
      _pushTo: _pushTo,
      deregAll: deregAll,
      defaults: defaults,
      mergeR: mergeR,
      ancestors: ancestors,
      pick: pick,
      omit: omit,
      pluck: pluck,
      filter: filter,
      find: find,
      mapObj: mapObj,
      map: map,
      values: values,
      allTrueR: allTrueR,
      anyTrueR: anyTrueR,
      unnestR: unnestR,
      flattenR: flattenR,
      pushR: pushR,
      uniqR: uniqR,
      unnest: unnest,
      flatten: flatten,
      assertPredicate: assertPredicate,
      assertMap: assertMap,
      assertFn: assertFn,
      pairs: pairs,
      arrayTuples: arrayTuples,
      applyPairs: applyPairs,
      tail: tail,
      copy: copy,
      _extend: _extend,
      silenceUncaughtInPromise: silenceUncaughtInPromise,
      silentRejection: silentRejection,
      notImplemented: notImplemented,
      services: services,
      Glob: Glob,
      curry: curry,
      compose: compose,
      pipe: pipe,
      prop: prop,
      propEq: propEq,
      parse: parse,
      not: not,
      and: and,
      or: or,
      all: all,
      any: any,
      is: is,
      eq: eq,
      val: val,
      invoke: invoke,
      pattern: pattern,
      isUndefined: isUndefined,
      isDefined: isDefined,
      isNull: isNull,
      isNullOrUndefined: isNullOrUndefined,
      isFunction: isFunction,
      isNumber: isNumber,
      isString: isString,
      isObject: isObject,
      isArray: isArray,
      isDate: isDate,
      isRegExp: isRegExp,
      isState: isState,
      isInjectable: isInjectable,
      isPromise: isPromise,
      Queue: Queue,
      maxLength: maxLength,
      padString: padString,
      kebobString: kebobString,
      functionToString: functionToString,
      fnToString: fnToString,
      stringify: stringify,
      beforeAfterSubstr: beforeAfterSubstr,
      hostRegex: hostRegex,
      stripFile: stripFile,
      splitHash: splitHash,
      splitQuery: splitQuery,
      splitEqual: splitEqual,
      trimHashVal: trimHashVal,
      splitOnDelim: splitOnDelim,
      joinNeighborsR: joinNeighborsR,
      get Category () { return exports.Category; },
      Trace: Trace,
      trace: trace,
      get DefType () { return exports.DefType; },
      Param: Param,
      ParamTypes: ParamTypes,
      StateParams: StateParams,
      ParamType: ParamType,
      PathNode: PathNode,
      PathUtils: PathUtils,
      resolvePolicies: resolvePolicies,
      defaultResolvePolicy: defaultResolvePolicy,
      Resolvable: Resolvable,
      NATIVE_INJECTOR_TOKEN: NATIVE_INJECTOR_TOKEN,
      ResolveContext: ResolveContext,
      resolvablesBuilder: resolvablesBuilder,
      StateBuilder: StateBuilder,
      StateObject: StateObject,
      StateMatcher: StateMatcher,
      StateQueueManager: StateQueueManager,
      StateRegistry: StateRegistry,
      StateService: StateService,
      TargetState: TargetState,
      get TransitionHookPhase () { return exports.TransitionHookPhase; },
      get TransitionHookScope () { return exports.TransitionHookScope; },
      HookBuilder: HookBuilder,
      matchState: matchState,
      RegisteredHook: RegisteredHook,
      makeEvent: makeEvent,
      get RejectType () { return exports.RejectType; },
      Rejection: Rejection,
      Transition: Transition,
      TransitionHook: TransitionHook,
      TransitionEventType: TransitionEventType,
      defaultTransOpts: defaultTransOpts,
      TransitionService: TransitionService,
      UrlMatcher: UrlMatcher,
      UrlMatcherFactory: UrlMatcherFactory,
      UrlRouter: UrlRouter,
      UrlRuleFactory: UrlRuleFactory,
      BaseUrlRule: BaseUrlRule,
      UrlService: UrlService,
      ViewService: ViewService,
      UIRouterGlobals: UIRouterGlobals,
      UIRouter: UIRouter,
      $q: $q,
      $injector: $injector,
      BaseLocationServices: BaseLocationServices,
      HashLocationService: HashLocationService,
      MemoryLocationService: MemoryLocationService,
      PushStateLocationService: PushStateLocationService,
      MemoryLocationConfig: MemoryLocationConfig,
      BrowserLocationConfig: BrowserLocationConfig,
      keyValsToObjectR: keyValsToObjectR,
      getParams: getParams,
      parseUrl: parseUrl$1,
      buildUrl: buildUrl,
      locationPluginFactory: locationPluginFactory,
      servicesPlugin: servicesPlugin,
      hashLocationPlugin: hashLocationPlugin,
      pushStateLocationPlugin: pushStateLocationPlugin,
      memoryLocationPlugin: memoryLocationPlugin,
      UIRouterPluginBase: UIRouterPluginBase
    });

  function getNg1ViewConfigFactory() {
    var templateFactory = null;
    return function (path, view) {
      templateFactory = templateFactory || services.$injector.get("$templateFactory");
      return [new Ng1ViewConfig(path, view, templateFactory)];
    };
  }
  var hasAnyKey = function (keys, obj) {
    return keys.reduce(function (acc, key) { return acc || isDefined(obj[key]); }, false);
  };
  /**
   * This is a [[StateBuilder.builder]] function for angular1 `views`.
   *
   * When the [[StateBuilder]] builds a [[StateObject]] object from a raw [[StateDeclaration]], this builder
   * handles the `views` property with logic specific to @uirouter/angularjs (ng1).
   *
   * If no `views: {}` property exists on the [[StateDeclaration]], then it creates the `views` object
   * and applies the state-level configuration to a view named `$default`.
   */
  function ng1ViewsBuilder(state) {
    // Do not process root state
    if (!state.parent)
      return {};
    var tplKeys = ['templateProvider', 'templateUrl', 'template', 'notify', 'async'], ctrlKeys = ['controller', 'controllerProvider', 'controllerAs', 'resolveAs'], compKeys = ['component', 'bindings', 'componentProvider'], nonCompKeys = tplKeys.concat(ctrlKeys), allViewKeys = compKeys.concat(nonCompKeys);
    // Do not allow a state to have both state-level props and also a `views: {}` property.
    // A state without a `views: {}` property can declare properties for the `$default` view as properties of the state.
    // However, the `$default` approach should not be mixed with a separate `views: ` block.
    if (isDefined(state.views) && hasAnyKey(allViewKeys, state)) {
      throw new Error("State '" + state.name + "' has a 'views' object. " +
        "It cannot also have \"view properties\" at the state level.  " +
        "Move the following properties into a view (in the 'views' object): " +
        (" " + allViewKeys.filter(function (key) { return isDefined(state[key]); }).join(", ")));
    }
    var views = {}, viewsObject = state.views || { "$default": pick(state, allViewKeys) };
    forEach(viewsObject, function (config, name) {
      // Account for views: { "": { template... } }
      name = name || "$default";
      // Account for views: { header: "headerComponent" }
      if (isString(config))
        config = { component: config };
      // Make a shallow copy of the config object
      config = extend({}, config);
      // Do not allow a view to mix props for component-style view with props for template/controller-style view
      if (hasAnyKey(compKeys, config) && hasAnyKey(nonCompKeys, config)) {
        throw new Error("Cannot combine: " + compKeys.join("|") + " with: " + nonCompKeys.join("|") + " in stateview: '" + name + "@" + state.name + "'");
      }
      config.resolveAs = config.resolveAs || '$resolve';
      config.$type = "ng1";
      config.$context = state;
      config.$name = name;
      var normalized = ViewService.normalizeUIViewTarget(config.$context, config.$name);
      config.$uiViewName = normalized.uiViewName;
      config.$uiViewContextAnchor = normalized.uiViewContextAnchor;
      views[name] = config;
    });
    return views;
  }
  var id$1 = 0;
  var Ng1ViewConfig = /** @class */ (function () {
    function Ng1ViewConfig(path, viewDecl, factory) {
      var _this = this;
      this.path = path;
      this.viewDecl = viewDecl;
      this.factory = factory;
      this.$id = id$1++;
      this.loaded = false;
      this.getTemplate = function (uiView, context) {
        return _this.component ? _this.factory.makeComponentTemplate(uiView, context, _this.component, _this.viewDecl.bindings) : _this.template;
      };
    }
    Ng1ViewConfig.prototype.load = function () {
      var _this = this;
      var $q = services.$q;
      var context = new ResolveContext(this.path);
      var params = this.path.reduce(function (acc, node) { return extend(acc, node.paramValues); }, {});
      var promises = {
        template: $q.when(this.factory.fromConfig(this.viewDecl, params, context)),
        controller: $q.when(this.getController(context))
      };
      return $q.all(promises).then(function (results) {
        trace.traceViewServiceEvent("Loaded", _this);
        _this.controller = results.controller;
        extend(_this, results.template); // Either { template: "tpl" } or { component: "cmpName" }
        return _this;
      });
    };
    /**
     * Gets the controller for a view configuration.
     *
     * @returns {Function|Promise.<Function>} Returns a controller, or a promise that resolves to a controller.
     */
    Ng1ViewConfig.prototype.getController = function (context) {
      var provider = this.viewDecl.controllerProvider;
      if (!isInjectable(provider))
        return this.viewDecl.controller;
      var deps = services.$injector.annotate(provider);
      var providerFn = isArray(provider) ? tail(provider) : provider;
      var resolvable = new Resolvable("", providerFn, deps);
      return resolvable.get(context);
    };
    return Ng1ViewConfig;
  }());

  /** @module view */
  /** for typedoc */
  /**
   * Service which manages loading of templates from a ViewConfig.
   */
  var TemplateFactory = /** @class */ (function () {
    function TemplateFactory() {
      var _this = this;
      /** @hidden */ this._useHttp = ng.version.minor < 3;
      /** @hidden */ this.$get = ['$http', '$templateCache', '$injector', function ($http, $templateCache, $injector) {
        _this.$templateRequest = $injector.has && $injector.has('$templateRequest') && $injector.get('$templateRequest');
        _this.$http = $http;
        _this.$templateCache = $templateCache;
        return _this;
      }];
    }
    /** @hidden */
    TemplateFactory.prototype.useHttpService = function (value) {
      this._useHttp = value;
    };

    /**
     * Creates a template from a configuration object.
     *
     * @param config Configuration object for which to load a template.
     * The following properties are search in the specified order, and the first one
     * that is defined is used to create the template:
     *
     * @param params  Parameters to pass to the template function.
     * @param context The resolve context associated with the template's view
     *
     * @return {string|object}  The template html as a string, or a promise for
     * that string,or `null` if no template is configured.
     */
    TemplateFactory.prototype.fromConfig = function (config, params, context) {
      var defaultTemplate = "<ui-view></ui-view>";
      var asTemplate = function (result) { return services.$q.when(result).then(function (str) { return ({ template: str }); }); };
      var asComponent = function (result) { return services.$q.when(result).then(function (str) { return ({ component: str }); }); };
      return (isDefined(config.template) ? asTemplate(this.fromString(config.template, params)) :
        isDefined(config.templateUrl) ? asTemplate(this.fromUrl(config.templateUrl, params)) :
          isDefined(config.templateProvider) ? asTemplate(this.fromProvider(config.templateProvider, params, context)) :
            isDefined(config.component) ? asComponent(config.component) :
              isDefined(config.componentProvider) ? asComponent(this.fromComponentProvider(config.componentProvider, params, context)) :
                asTemplate(defaultTemplate));
    };

    /**
     * Creates a template from a string or a function returning a string.
     *
     * @param template html template as a string or function that returns an html template as a string.
     * @param params Parameters to pass to the template function.
     *
     * @return {string|object} The template html as a string, or a promise for that
     * string.
     */
    TemplateFactory.prototype.fromString = function (template, params) {
      return isFunction(template) ? template(params) : template;
    };

    /**
     * Loads a template from the a URL via `$http` and `$templateCache`.
     *
     * @param {string|Function} url url of the template to load, or a function
     * that returns a url.
     * @param {Object} params Parameters to pass to the url function.
     * @return {string|Promise.<string>} The template html as a string, or a promise
     * for that string.
     */
    TemplateFactory.prototype.fromUrl = function (url, params) {
      if (isFunction(url))
        url = url(params);
      if (url == null)
        return null;
      if (this._useHttp) {
        return this.$http.get(url, { cache: this.$templateCache, headers: { Accept: 'text/html' } })
          .then(function (response) {
            return response.data;
          });
      }
      return this.$templateRequest(url);
    };

    /**
     * Creates a template by invoking an injectable provider function.
     *
     * @param provider Function to invoke via `locals`
     * @param {Function} injectFn a function used to invoke the template provider
     * @return {string|Promise.<string>} The template html as a string, or a promise
     * for that string.
     */
    TemplateFactory.prototype.fromProvider = function (provider, params, context) {
      var deps = services.$injector.annotate(provider);
      var providerFn = isArray(provider) ? tail(provider) : provider;
      var resolvable = new Resolvable("", providerFn, deps);
      return resolvable.get(context);
    };

    /**
     * Creates a component's template by invoking an injectable provider function.
     *
     * @param provider Function to invoke via `locals`
     * @param {Function} injectFn a function used to invoke the template provider
     * @return {string} The template html as a string: "<component-name input1='::$resolve.foo'></component-name>".
     */
    TemplateFactory.prototype.fromComponentProvider = function (provider, params, context) {
      var deps = services.$injector.annotate(provider);
      var providerFn = isArray(provider) ? tail(provider) : provider;
      var resolvable = new Resolvable("", providerFn, deps);
      return resolvable.get(context);
    };

    /**
     * Creates a template from a component's name
     *
     * This implements route-to-component.
     * It works by retrieving the component (directive) metadata from the injector.
     * It analyses the component's bindings, then constructs a template that instantiates the component.
     * The template wires input and output bindings to resolves or from the parent component.
     *
     * @param uiView {object} The parent ui-view (for binding outputs to callbacks)
     * @param context The ResolveContext (for binding outputs to callbacks returned from resolves)
     * @param component {string} Component's name in camel case.
     * @param bindings An object defining the component's bindings: {foo: '<'}
     * @return {string} The template as a string: "<component-name input1='::$resolve.foo'></component-name>".
     */
    TemplateFactory.prototype.makeComponentTemplate = function (uiView, context, component, bindings) {
      bindings = bindings || {};
      // Bind once prefix
      var prefix = ng.version.minor >= 3 ? "::" : "";
      // Convert to kebob name. Add x- prefix if the string starts with `x-` or `data-`
      var kebob = function (camelCase) {
        var kebobed = kebobString(camelCase);
        return /^(x|data)-/.exec(kebobed) ? "x-" + kebobed : kebobed;
      };
      var attributeTpl = function (input) {
        var name = input.name, type = input.type;
        var attrName = kebob(name);
        // If the ui-view has an attribute which matches a binding on the routed component
        // then pass that attribute through to the routed component template.
        // Prefer ui-view wired mappings to resolve data, unless the resolve was explicitly bound using `bindings:`
        if (uiView.attr(attrName) && !bindings[name])
          return attrName + "='" + uiView.attr(attrName) + "'";
        var resolveName = bindings[name] || name;
        // Pre-evaluate the expression for "@" bindings by enclosing in {{ }}
        // some-attr="{{ ::$resolve.someResolveName }}"
        if (type === '@')
          return attrName + "='{{" + prefix + "$resolve." + resolveName + "}}'";
        // Wire "&" callbacks to resolves that return a callback function
        // Get the result of the resolve (should be a function) and annotate it to get its arguments.
        // some-attr="$resolve.someResolveResultName(foo, bar)"
        if (type === '&') {
          var res = context.getResolvable(resolveName);
          var fn = res && res.data;
          var args = fn && services.$injector.annotate(fn) || [];
          // account for array style injection, i.e., ['foo', function(foo) {}]
          var arrayIdxStr = isArray(fn) ? "[" + (fn.length - 1) + "]" : '';
          return attrName + "='$resolve." + resolveName + arrayIdxStr + "(" + args.join(",") + ")'";
        }
        // some-attr="::$resolve.someResolveName"
        return attrName + "='" + prefix + "$resolve." + resolveName + "'";
      };
      var attrs = getComponentBindings(component).map(attributeTpl).join(" ");
      var kebobName = kebob(component);
      return "<" + kebobName + " " + attrs + "></" + kebobName + ">";
    };

    return TemplateFactory;
  }());
// Gets all the directive(s)' inputs ('@', '=', and '<') and outputs ('&')
  function getComponentBindings(name) {
    var cmpDefs = services.$injector.get(name + "Directive"); // could be multiple
    if (!cmpDefs || !cmpDefs.length)
      throw new Error("Unable to find component named '" + name + "'");
    return cmpDefs.map(getBindings).reduce(unnestR, []);
  }
// Given a directive definition, find its object input attributes
// Use different properties, depending on the type of directive (component, bindToController, normal)
  var getBindings = function (def) {
    if (isObject(def.bindToController))
      return scopeBindings(def.bindToController);
    return scopeBindings(def.scope);
  };
// for ng 1.2 style, process the scope: { input: "=foo" }
// for ng 1.3 through ng 1.5, process the component's bindToController: { input: "=foo" } object
  var scopeBindings = function (bindingsObj) { return Object.keys(bindingsObj || {})
    .map(function (key) { return [key, /^([=<@&])[?]?(.*)/.exec(bindingsObj[key])]; })
    .filter(function (tuple) { return isDefined(tuple) && isArray(tuple[1]); })
    .map(function (tuple) { return ({ name: tuple[1][2] || tuple[0], type: tuple[1][1] }); }); };

  /** @module ng1 */ /** for typedoc */
  /**
   * The Angular 1 `StateProvider`
   *
   * The `$stateProvider` works similar to Angular's v1 router, but it focuses purely
   * on state.
   *
   * A state corresponds to a "place" in the application in terms of the overall UI and
   * navigation. A state describes (via the controller / template / view properties) what
   * the UI looks like and does at that place.
   *
   * States often have things in common, and the primary way of factoring out these
   * commonalities in this model is via the state hierarchy, i.e. parent/child states aka
   * nested states.
   *
   * The `$stateProvider` provides interfaces to declare these states for your app.
   */
  var StateProvider = /** @class */ (function () {
    function StateProvider(stateRegistry, stateService) {
      this.stateRegistry = stateRegistry;
      this.stateService = stateService;
      createProxyFunctions(val(StateProvider.prototype), this, val(this));
    }
    /**
     * Decorates states when they are registered
     *
     * Allows you to extend (carefully) or override (at your own peril) the
     * `stateBuilder` object used internally by [[StateRegistry]].
     * This can be used to add custom functionality to ui-router,
     * for example inferring templateUrl based on the state name.
     *
     * When passing only a name, it returns the current (original or decorated) builder
     * function that matches `name`.
     *
     * The builder functions that can be decorated are listed below. Though not all
     * necessarily have a good use case for decoration, that is up to you to decide.
     *
     * In addition, users can attach custom decorators, which will generate new
     * properties within the state's internal definition. There is currently no clear
     * use-case for this beyond accessing internal states (i.e. $state.$current),
     * however, expect this to become increasingly relevant as we introduce additional
     * meta-programming features.
     *
     * **Warning**: Decorators should not be interdependent because the order of
     * execution of the builder functions in non-deterministic. Builder functions
     * should only be dependent on the state definition object and super function.
     *
     *
     * Existing builder functions and current return values:
     *
     * - **parent** `{object}` - returns the parent state object.
     * - **data** `{object}` - returns state data, including any inherited data that is not
     *   overridden by own values (if any).
     * - **url** `{object}` - returns a {@link ui.router.util.type:UrlMatcher UrlMatcher}
     *   or `null`.
     * - **navigable** `{object}` - returns closest ancestor state that has a URL (aka is
     *   navigable).
     * - **params** `{object}` - returns an array of state params that are ensured to
     *   be a super-set of parent's params.
     * - **views** `{object}` - returns a views object where each key is an absolute view
     *   name (i.e. "viewName@stateName") and each value is the config object
     *   (template, controller) for the view. Even when you don't use the views object
     *   explicitly on a state config, one is still created for you internally.
     *   So by decorating this builder function you have access to decorating template
     *   and controller properties.
     * - **ownParams** `{object}` - returns an array of params that belong to the state,
     *   not including any params defined by ancestor states.
     * - **path** `{string}` - returns the full path from the root down to this state.
     *   Needed for state activation.
     * - **includes** `{object}` - returns an object that includes every state that
     *   would pass a `$state.includes()` test.
     *
     * #### Example:
     * Override the internal 'views' builder with a function that takes the state
     * definition, and a reference to the internal function being overridden:
     * ```js
     * $stateProvider.decorator('views', function (state, parent) {
     *   let result = {},
     *       views = parent(state);
     *
     *   angular.forEach(views, function (config, name) {
     *     let autoName = (state.name + '.' + name).replace('.', '/');
     *     config.templateUrl = config.templateUrl || '/partials/' + autoName + '.html';
     *     result[name] = config;
     *   });
     *   return result;
     * });
     *
     * $stateProvider.state('home', {
     *   views: {
     *     'contact.list': { controller: 'ListController' },
     *     'contact.item': { controller: 'ItemController' }
     *   }
     * });
     * ```
     *
     *
     * ```js
     * // Auto-populates list and item views with /partials/home/contact/list.html,
     * // and /partials/home/contact/item.html, respectively.
     * $state.go('home');
     * ```
     *
     * @param {string} name The name of the builder function to decorate.
     * @param {object} func A function that is responsible for decorating the original
     * builder function. The function receives two parameters:
     *
     *   - `{object}` - state - The state config object.
     *   - `{object}` - super - The original builder function.
     *
     * @return {object} $stateProvider - $stateProvider instance
     */
    StateProvider.prototype.decorator = function (name, func) {
      return this.stateRegistry.decorator(name, func) || this;
    };
    StateProvider.prototype.state = function (name, definition) {
      if (isObject(name)) {
        definition = name;
      }
      else {
        definition.name = name;
      }
      this.stateRegistry.register(definition);
      return this;
    };
    /**
     * Registers an invalid state handler
     *
     * This is a passthrough to [[StateService.onInvalid]] for ng1.
     */
    StateProvider.prototype.onInvalid = function (callback) {
      return this.stateService.onInvalid(callback);
    };
    return StateProvider;
  }());

  /** @module ng1 */ /** */
  /**
   * This is a [[StateBuilder.builder]] function for angular1 `onEnter`, `onExit`,
   * `onRetain` callback hooks on a [[Ng1StateDeclaration]].
   *
   * When the [[StateBuilder]] builds a [[StateObject]] object from a raw [[StateDeclaration]], this builder
   * ensures that those hooks are injectable for @uirouter/angularjs (ng1).
   */
  var getStateHookBuilder = function (hookName) {
    return function stateHookBuilder(state, parentFn) {
      var hook = state[hookName];
      var pathname = hookName === 'onExit' ? 'from' : 'to';
      function decoratedNg1Hook(trans, state) {
        var resolveContext = new ResolveContext(trans.treeChanges(pathname));
        var locals = extend(getLocals(resolveContext), { $state$: state, $transition$: trans });
        return services.$injector.invoke(hook, this, locals);
      }
      return hook ? decoratedNg1Hook : undefined;
    };
  };

  /**
   * Implements UI-Router LocationServices and LocationConfig using Angular 1's $location service
   */
  var Ng1LocationServices = /** @class */ (function () {
    function Ng1LocationServices($locationProvider) {
      // .onChange() registry
      this._urlListeners = [];
      this.$locationProvider = $locationProvider;
      var _lp = val($locationProvider);
      createProxyFunctions(_lp, this, _lp, ['hashPrefix']);
    }
    Ng1LocationServices.prototype.dispose = function () { };
    Ng1LocationServices.prototype.onChange = function (callback) {
      var _this = this;
      this._urlListeners.push(callback);
      return function () { return removeFrom(_this._urlListeners)(callback); };
    };
    Ng1LocationServices.prototype.html5Mode = function () {
      var html5Mode = this.$locationProvider.html5Mode();
      html5Mode = isObject(html5Mode) ? html5Mode.enabled : html5Mode;
      return html5Mode && this.$sniffer.history;
    };
    Ng1LocationServices.prototype.url = function (newUrl, replace, state) {
      if (replace === void 0) { replace = false; }
      if (newUrl)
        this.$location.url(newUrl);
      if (replace)
        this.$location.replace();
      if (state)
        this.$location.state(state);
      return this.$location.url();
    };
    Ng1LocationServices.prototype._runtimeServices = function ($rootScope, $location, $sniffer, $browser) {
      var _this = this;
      this.$location = $location;
      this.$sniffer = $sniffer;
      // Bind $locationChangeSuccess to the listeners registered in LocationService.onChange
      $rootScope.$on("$locationChangeSuccess", function (evt) { return _this._urlListeners.forEach(function (fn) { return fn(evt); }); });
      var _loc = val($location);
      var _browser = val($browser);
      // Bind these LocationService functions to $location
      createProxyFunctions(_loc, this, _loc, ["replace", "path", "search", "hash"]);
      // Bind these LocationConfig functions to $location
      createProxyFunctions(_loc, this, _loc, ['port', 'protocol', 'host']);
      // Bind these LocationConfig functions to $browser
      createProxyFunctions(_browser, this, _browser, ['baseHref']);
    };
    /**
     * Applys ng1-specific path parameter encoding
     *
     * The Angular 1 `$location` service is a bit weird.
     * It doesn't allow slashes to be encoded/decoded bi-directionally.
     *
     * See the writeup at https://github.com/angular-ui/ui-router/issues/2598
     *
     * This code patches the `path` parameter type so it encoded/decodes slashes as ~2F
     *
     * @param router
     */
    Ng1LocationServices.monkeyPatchPathParameterType = function (router) {
      var pathType = router.urlMatcherFactory.type('path');
      pathType.encode = function (val) {
        return val != null ? val.toString().replace(/(~|\/)/g, function (m) { return ({ '~': '~~', '/': '~2F' }[m]); }) : val;
      };
      pathType.decode = function (val) {
        return val != null ? val.toString().replace(/(~~|~2F)/g, function (m) { return ({ '~~': '~', '~2F': '/' }[m]); }) : val;
      };
    };
    return Ng1LocationServices;
  }());

  /** @module url */ /** */
  /**
   * Manages rules for client-side URL
   *
   * ### Deprecation warning:
   * This class is now considered to be an internal API
   * Use the [[UrlService]] instead.
   * For configuring URL rules, use the [[UrlRulesApi]] which can be found as [[UrlService.rules]].
   *
   * This class manages the router rules for what to do when the URL changes.
   *
   * This provider remains for backwards compatibility.
   *
   * @deprecated
   */
  var UrlRouterProvider = /** @class */ (function () {
    /** @hidden */
    function UrlRouterProvider(router) {
      this._router = router;
      this._urlRouter = router.urlRouter;
    }
    /** @hidden */
    UrlRouterProvider.prototype.$get = function () {
      var urlRouter = this._urlRouter;
      urlRouter.update(true);
      if (!urlRouter.interceptDeferred)
        urlRouter.listen();
      return urlRouter;
    };
    /**
     * Registers a url handler function.
     *
     * Registers a low level url handler (a `rule`).
     * A rule detects specific URL patterns and returns a redirect, or performs some action.
     *
     * If a rule returns a string, the URL is replaced with the string, and all rules are fired again.
     *
     * #### Example:
     * ```js
     * var app = angular.module('app', ['ui.router.router']);
     *
     * app.config(function ($urlRouterProvider) {
     *   // Here's an example of how you might allow case insensitive urls
     *   $urlRouterProvider.rule(function ($injector, $location) {
     *     var path = $location.path(),
     *         normalized = path.toLowerCase();
     *
     *     if (path !== normalized) {
     *       return normalized;
     *     }
     *   });
     * });
     * ```
     *
     * @param ruleFn
     * Handler function that takes `$injector` and `$location` services as arguments.
     * You can use them to detect a url and return a different url as a string.
     *
     * @return [[UrlRouterProvider]] (`this`)
     */
    UrlRouterProvider.prototype.rule = function (ruleFn) {
      var _this = this;
      if (!isFunction(ruleFn))
        throw new Error("'rule' must be a function");
      var match = function () {
        return ruleFn(services.$injector, _this._router.locationService);
      };
      var rule = new BaseUrlRule(match, identity);
      this._urlRouter.rule(rule);
      return this;
    };

    /**
     * Defines the path or behavior to use when no url can be matched.
     *
     * #### Example:
     * ```js
     * var app = angular.module('app', ['ui.router.router']);
     *
     * app.config(function ($urlRouterProvider) {
     *   // if the path doesn't match any of the urls you configured
     *   // otherwise will take care of routing the user to the
     *   // specified url
     *   $urlRouterProvider.otherwise('/index');
     *
     *   // Example of using function rule as param
     *   $urlRouterProvider.otherwise(function ($injector, $location) {
     *     return '/a/valid/url';
     *   });
     * });
     * ```
     *
     * @param rule
     * The url path you want to redirect to or a function rule that returns the url path or performs a `$state.go()`.
     * The function version is passed two params: `$injector` and `$location` services, and should return a url string.
     *
     * @return {object} `$urlRouterProvider` - `$urlRouterProvider` instance
     */
    UrlRouterProvider.prototype.otherwise = function (rule) {
      var _this = this;
      var urlRouter = this._urlRouter;
      if (isString(rule)) {
        urlRouter.otherwise(rule);
      }
      else if (isFunction(rule)) {
        urlRouter.otherwise(function () { return rule(services.$injector, _this._router.locationService); });
      }
      else {
        throw new Error("'rule' must be a string or function");
      }
      return this;
    };

    /**
     * Registers a handler for a given url matching.
     *
     * If the handler is a string, it is
     * treated as a redirect, and is interpolated according to the syntax of match
     * (i.e. like `String.replace()` for `RegExp`, or like a `UrlMatcher` pattern otherwise).
     *
     * If the handler is a function, it is injectable.
     * It gets invoked if `$location` matches.
     * You have the option of inject the match object as `$match`.
     *
     * The handler can return
     *
     * - **falsy** to indicate that the rule didn't match after all, then `$urlRouter`
     *   will continue trying to find another one that matches.
     * - **string** which is treated as a redirect and passed to `$location.url()`
     * - **void** or any **truthy** value tells `$urlRouter` that the url was handled.
     *
     * #### Example:
     * ```js
     * var app = angular.module('app', ['ui.router.router']);
     *
     * app.config(function ($urlRouterProvider) {
     *   $urlRouterProvider.when($state.url, function ($match, $stateParams) {
     *     if ($state.$current.navigable !== state ||
     *         !equalForKeys($match, $stateParams) {
     *      $state.transitionTo(state, $match, false);
     *     }
     *   });
     * });
     * ```
     *
     * @param what A pattern string to match, compiled as a [[UrlMatcher]].
     * @param handler The path (or function that returns a path) that you want to redirect your user to.
     * @param ruleCallback [optional] A callback that receives the `rule` registered with [[UrlMatcher.rule]]
     *
     * Note: the handler may also invoke arbitrary code, such as `$state.go()`
     */
    UrlRouterProvider.prototype.when = function (what, handler) {
      if (isArray(handler) || isFunction(handler)) {
        handler = UrlRouterProvider.injectableHandler(this._router, handler);
      }
      this._urlRouter.when(what, handler);
      return this;
    };

    UrlRouterProvider.injectableHandler = function (router, handler) {
      return function (match) {
        return services.$injector.invoke(handler, null, { $match: match, $stateParams: router.globals.params });
      };
    };
    /**
     * Disables monitoring of the URL.
     *
     * Call this method before UI-Router has bootstrapped.
     * It will stop UI-Router from performing the initial url sync.
     *
     * This can be useful to perform some asynchronous initialization before the router starts.
     * Once the initialization is complete, call [[listen]] to tell UI-Router to start watching and synchronizing the URL.
     *
     * #### Example:
     * ```js
     * var app = angular.module('app', ['ui.router']);
     *
     * app.config(function ($urlRouterProvider) {
     *   // Prevent $urlRouter from automatically intercepting URL changes;
     *   $urlRouterProvider.deferIntercept();
     * })
     *
     * app.run(function (MyService, $urlRouter, $http) {
     *   $http.get("/stuff").then(function(resp) {
     *     MyService.doStuff(resp.data);
     *     $urlRouter.listen();
     *     $urlRouter.sync();
     *   });
     * });
     * ```
     *
     * @param defer Indicates whether to defer location change interception.
     *        Passing no parameter is equivalent to `true`.
     */
    UrlRouterProvider.prototype.deferIntercept = function (defer) {
      this._urlRouter.deferIntercept(defer);
    };

    return UrlRouterProvider;
  }());

  /**
   * # Angular 1 types
   *
   * UI-Router core provides various Typescript types which you can use for code completion and validating parameter values, etc.
   * The customizations to the core types for Angular UI-Router are documented here.
   *
   * The optional [[$resolve]] service is also documented here.
   *
   * @module ng1
   * @preferred
   */
  /** for typedoc */
  ng.module("ui.router.angular1", []);
  var mod_init = ng.module('ui.router.init', []);
  var mod_util = ng.module('ui.router.util', ['ng', 'ui.router.init']);
  var mod_rtr = ng.module('ui.router.router', ['ui.router.util']);
  var mod_state = ng.module('ui.router.state', ['ui.router.router', 'ui.router.util', 'ui.router.angular1']);
  var mod_main = ng.module('ui.router', ['ui.router.init', 'ui.router.state', 'ui.router.angular1']);
  var mod_cmpt = ng.module('ui.router.compat', ['ui.router']); // tslint:disable-line
  var router = null;
  $uiRouter.$inject = ['$locationProvider'];
  /** This angular 1 provider instantiates a Router and exposes its services via the angular injector */
  function $uiRouter($locationProvider) {
    // Create a new instance of the Router when the $uiRouterProvider is initialized
    router = this.router = new UIRouter();
    router.stateProvider = new StateProvider(router.stateRegistry, router.stateService);
    // Apply ng1 specific StateBuilder code for `views`, `resolve`, and `onExit/Retain/Enter` properties
    router.stateRegistry.decorator("views", ng1ViewsBuilder);
    router.stateRegistry.decorator("onExit", getStateHookBuilder("onExit"));
    router.stateRegistry.decorator("onRetain", getStateHookBuilder("onRetain"));
    router.stateRegistry.decorator("onEnter", getStateHookBuilder("onEnter"));
    router.viewService._pluginapi._viewConfigFactory('ng1', getNg1ViewConfigFactory());
    var ng1LocationService = router.locationService = router.locationConfig = new Ng1LocationServices($locationProvider);
    Ng1LocationServices.monkeyPatchPathParameterType(router);
    // backwards compat: also expose router instance as $uiRouterProvider.router
    router['router'] = router;
    router['$get'] = $get;
    $get.$inject = ['$location', '$browser', '$sniffer', '$rootScope', '$http', '$templateCache'];
    function $get($location, $browser, $sniffer, $rootScope, $http, $templateCache) {
      ng1LocationService._runtimeServices($rootScope, $location, $sniffer, $browser);
      delete router['router'];
      delete router['$get'];
      return router;
    }
    return router;
  }
  var getProviderFor = function (serviceName) { return ['$uiRouterProvider', function ($urp) {
    var service = $urp.router[serviceName];
    service["$get"] = function () { return service; };
    return service;
  }]; };
// This effectively calls $get() on `$uiRouterProvider` to trigger init (when ng enters runtime)
  runBlock.$inject = ['$injector', '$q', '$uiRouter'];
  function runBlock($injector, $q, $uiRouter) {
    services.$injector = $injector;
    services.$q = $q;
    // The $injector is now available.
    // Find any resolvables that had dependency annotation deferred
    $uiRouter.stateRegistry.get()
      .map(function (x) { return x.$$state().resolvables; })
      .reduce(unnestR, [])
      .filter(function (x) { return x.deps === "deferred"; })
      .forEach(function (resolvable) { return resolvable.deps = $injector.annotate(resolvable.resolveFn, $injector.strictDi); });
  }
// $urlRouter service and $urlRouterProvider
  var getUrlRouterProvider = function (uiRouter) {
    return uiRouter.urlRouterProvider = new UrlRouterProvider(uiRouter);
  };
// $state service and $stateProvider
// $urlRouter service and $urlRouterProvider
  var getStateProvider = function () {
    return extend(router.stateProvider, { $get: function () { return router.stateService; } });
  };
  watchDigests.$inject = ['$rootScope'];
  function watchDigests($rootScope) {
    $rootScope.$watch(function () { trace.approximateDigests++; });
  }
  mod_init.provider("$uiRouter", $uiRouter);
  mod_rtr.provider('$urlRouter', ['$uiRouterProvider', getUrlRouterProvider]);
  mod_util.provider('$urlService', getProviderFor('urlService'));
  mod_util.provider('$urlMatcherFactory', ['$uiRouterProvider', function () { return router.urlMatcherFactory; }]);
  mod_util.provider('$templateFactory', function () { return new TemplateFactory(); });
  mod_state.provider('$stateRegistry', getProviderFor('stateRegistry'));
  mod_state.provider('$uiRouterGlobals', getProviderFor('globals'));
  mod_state.provider('$transitions', getProviderFor('transitionService'));
  mod_state.provider('$state', ['$uiRouterProvider', getStateProvider]);
  mod_state.factory('$stateParams', ['$uiRouter', function ($uiRouter) { return $uiRouter.globals.params; }]);
  mod_main.factory('$view', function () { return router.viewService; });
  mod_main.service("$trace", function () { return trace; });
  mod_main.run(watchDigests);
  mod_util.run(['$urlMatcherFactory', function ($urlMatcherFactory) { }]);
  mod_state.run(['$state', function ($state) { }]);
  mod_rtr.run(['$urlRouter', function ($urlRouter) { }]);
  mod_init.run(runBlock);
  /** @hidden TODO: find a place to move this */
  var getLocals = function (ctx) {
    var tokens = ctx.getTokens().filter(isString);
    var tuples = tokens.map(function (key) {
      var resolvable = ctx.getResolvable(key);
      var waitPolicy = ctx.getPolicy(resolvable).async;
      return [key, waitPolicy === 'NOWAIT' ? resolvable.promise : resolvable.data];
    });
    return tuples.reduce(applyPairs, {});
  };

  /**
   * # Angular 1 injectable services
   *
   * This is a list of the objects which can be injected using angular's injector.
   *
   * There are three different kind of injectable objects:
   *
   * ## **Provider** objects
   * #### injectable into a `.config()` block during configtime
   *
   * - [[$uiRouterProvider]]: The UI-Router instance
   * - [[$stateProvider]]: State registration
   * - [[$transitionsProvider]]: Transition hooks
   * - [[$urlServiceProvider]]: All URL related public APIs
   *
   * - [[$uiViewScrollProvider]]: Disable ui-router view scrolling
   * - [[$urlRouterProvider]]: (deprecated) Url matching rules
   * - [[$urlMatcherFactoryProvider]]: (deprecated) Url parsing config
   *
   * ## **Service** objects
   * #### injectable globally during runtime
   *
   * - [[$uiRouter]]: The UI-Router instance
   * - [[$trace]]: Enable transition trace/debug
   * - [[$transitions]]: Transition hooks
   * - [[$state]]: Imperative state related APIs
   * - [[$stateRegistry]]: State registration
   * - [[$urlService]]: All URL related public APIs
   * - [[$uiRouterGlobals]]: Global variables
   * - [[$uiViewScroll]]: Scroll an element into view
   *
   * - [[$stateParams]]: (deprecated) Global state param values
   * - [[$urlRouter]]: (deprecated) URL synchronization
   * - [[$urlMatcherFactory]]: (deprecated) URL parsing config
   *
   * ## **Per-Transition** objects
   *
   * - These kind of objects are injectable into:
   *   - Resolves ([[Ng1StateDeclaration.resolve]]),
   *   - Transition Hooks ([[TransitionService.onStart]], etc),
   *   - Routed Controllers ([[Ng1ViewDeclaration.controller]])
   *
   * #### Different instances are injected based on the [[Transition]]
   *
   * - [[$transition$]]: The current Transition object
   * - [[$stateParams]]: State param values for pending Transition (deprecated)
   * - Any resolve data defined using [[Ng1StateDeclaration.resolve]]
   *
   * @ng1api
   * @preferred
   * @module injectables
   */ /** */
  /**
   * The current (or pending) State Parameters
   *
   * An injectable global **Service Object** which holds the state parameters for the latest **SUCCESSFUL** transition.
   *
   * The values are not updated until *after* a `Transition` successfully completes.
   *
   * **Also:** an injectable **Per-Transition Object** object which holds the pending state parameters for the pending `Transition` currently running.
   *
   * ### Deprecation warning:
   *
   * The value injected for `$stateParams` is different depending on where it is injected.
   *
   * - When injected into an angular service, the object injected is the global **Service Object** with the parameter values for the latest successful `Transition`.
   * - When injected into transition hooks, resolves, or view controllers, the object is the **Per-Transition Object** with the parameter values for the running `Transition`.
   *
   * Because of these confusing details, this service is deprecated.
   *
   * ### Instead of using the global `$stateParams` service object,
   * inject [[$uiRouterGlobals]] and use [[UIRouterGlobals.params]]
   *
   * ```js
   * MyService.$inject = ['$uiRouterGlobals'];
   * function MyService($uiRouterGlobals) {
 *   return {
 *     paramValues: function () {
 *       return $uiRouterGlobals.params;
 *     }
 *   }
 * }
   * ```
   *
   * ### Instead of using the per-transition `$stateParams` object,
   * inject the current `Transition` (as [[$transition$]]) and use [[Transition.params]]
   *
   * ```js
   * MyController.$inject = ['$transition$'];
   * function MyController($transition$) {
 *   var username = $transition$.params().username;
 *   // .. do something with username
 * }
   * ```
   *
   * ---
   *
   * This object can be injected into other services.
   *
   * #### Deprecated Example:
   * ```js
   * SomeService.$inject = ['$http', '$stateParams'];
   * function SomeService($http, $stateParams) {
 *   return {
 *     getUser: function() {
 *       return $http.get('/api/users/' + $stateParams.username);
 *     }
 *   }
 * };
   * angular.service('SomeService', SomeService);
   * ```
   * @deprecated
   */

  /**
   * # Angular 1 Directives
   *
   * These are the directives included in UI-Router for Angular 1.
   * These directives are used in templates to create viewports and link/navigate to states.
   *
   * @ng1api
   * @preferred
   * @module directives
   */ /** for typedoc */
  /** @hidden */
  function parseStateRef(ref) {
    var paramsOnly = ref.match(/^\s*({[^}]*})\s*$/), parsed;
    if (paramsOnly)
      ref = '(' + paramsOnly[1] + ')';
    parsed = ref.replace(/\n/g, " ").match(/^\s*([^(]*?)\s*(\((.*)\))?\s*$/);
    if (!parsed || parsed.length !== 4)
      throw new Error("Invalid state ref '" + ref + "'");
    return { state: parsed[1] || null, paramExpr: parsed[3] || null };
  }
  /** @hidden */
  function stateContext(el) {
    var $uiView = el.parent().inheritedData('$uiView');
    var path = parse('$cfg.path')($uiView);
    return path ? tail(path).state.name : undefined;
  }
  /** @hidden */
  function processedDef($state, $element, def) {
    var uiState = def.uiState || $state.current.name;
    var uiStateOpts = extend(defaultOpts($element, $state), def.uiStateOpts || {});
    var href = $state.href(uiState, def.uiStateParams, uiStateOpts);
    return { uiState: uiState, uiStateParams: def.uiStateParams, uiStateOpts: uiStateOpts, href: href };
  }
  /** @hidden */
  function getTypeInfo(el) {
    // SVGAElement does not use the href attribute, but rather the 'xlinkHref' attribute.
    var isSvg = Object.prototype.toString.call(el.prop('href')) === '[object SVGAnimatedString]';
    var isForm = el[0].nodeName === "FORM";
    return {
      attr: isForm ? "action" : (isSvg ? 'xlink:href' : 'href'),
      isAnchor: el.prop("tagName").toUpperCase() === "A",
      clickable: !isForm
    };
  }
  /** @hidden */
  function clickHook(el, $state, $timeout, type, getDef) {
    return function (e) {
      var button = e.which || e.button, target = getDef();
      if (!(button > 1 || e.ctrlKey || e.metaKey || e.shiftKey || el.attr('target'))) {
        // HACK: This is to allow ng-clicks to be processed before the transition is initiated:
        var transition = $timeout(function () {
          $state.go(target.uiState, target.uiStateParams, target.uiStateOpts);
        });
        e.preventDefault();
        // if the state has no URL, ignore one preventDefault from the <a> directive.
        var ignorePreventDefaultCount = type.isAnchor && !target.href ? 1 : 0;
        e.preventDefault = function () {
          if (ignorePreventDefaultCount-- <= 0)
            $timeout.cancel(transition);
        };
      }
    };
  }
  /** @hidden */
  function defaultOpts(el, $state) {
    return {
      relative: stateContext(el) || $state.$current,
      inherit: true,
      source: "sref"
    };
  }
  /** @hidden */
  function bindEvents(element, scope, hookFn, uiStateOpts) {
    var events;
    if (uiStateOpts) {
      events = uiStateOpts.events;
    }
    if (!isArray(events)) {
      events = ['click'];
    }
    var on = element.on ? 'on' : 'bind';
    for (var _i = 0, events_1 = events; _i < events_1.length; _i++) {
      var event_1 = events_1[_i];
      element[on](event_1, hookFn);
    }
    scope.$on('$destroy', function () {
      var off = element.off ? 'off' : 'unbind';
      for (var _i = 0, events_2 = events; _i < events_2.length; _i++) {
        var event_2 = events_2[_i];
        element[off](event_2, hookFn);
      }
    });
  }
  /**
   * `ui-sref`: A directive for linking to a state
   *
   * A directive which links to a state (and optionally, parameters).
   * When clicked, this directive activates the linked state with the supplied parameter values.
   *
   * ### Linked State
   * The attribute value of the `ui-sref` is the name of the state to link to.
   *
   * #### Example:
   * This will activate the `home` state when the link is clicked.
   * ```html
   * <a ui-sref="home">Home</a>
   * ```
   *
   * ### Relative Links
   * You can also use relative state paths within `ui-sref`, just like a relative path passed to `$state.go()` ([[StateService.go]]).
   * You just need to be aware that the path is relative to the state that *created* the link.
   * This allows a state to create a relative `ui-sref` which always targets the same destination.
   *
   * #### Example:
   * Both these links are relative to the parent state, even when a child state is currently active.
   * ```html
   * <a ui-sref=".child1">child 1 state</a>
   * <a ui-sref=".child2">child 2 state</a>
   * ```
   *
   * This link activates the parent state.
   * ```html
   * <a ui-sref="^">Return</a>
   * ```
   *
   * ### hrefs
   * If the linked state has a URL, the directive will automatically generate and
   * update the `href` attribute (using the [[StateService.href]]  method).
   *
   * #### Example:
   * Assuming the `users` state has a url of `/users/`
   * ```html
   * <a ui-sref="users" href="/users/">Users</a>
   * ```
   *
   * ### Parameter Values
   * In addition to the state name, a `ui-sref` can include parameter values which are applied when activating the state.
   * Param values can be provided in the `ui-sref` value after the state name, enclosed by parentheses.
   * The content inside the parentheses is an expression, evaluated to the parameter values.
   *
   * #### Example:
   * This example renders a list of links to users.
   * The state's `userId` parameter value comes from each user's `user.id` property.
   * ```html
   * <li ng-repeat="user in users">
   *   <a ui-sref="users.detail({ userId: user.id })">{{ user.displayName }}</a>
   * </li>
   * ```
   *
   * Note:
   * The parameter values expression is `$watch`ed for updates.
   *
   * ### Transition Options
   * You can specify [[TransitionOptions]] to pass to [[StateService.go]] by using the `ui-sref-opts` attribute.
   * Options are restricted to `location`, `inherit`, and `reload`.
   *
   * #### Example:
   * ```html
   * <a ui-sref="home" ui-sref-opts="{ reload: true }">Home</a>
   * ```
   *
   * ### Other DOM Events
   *
   * You can also customize which DOM events to respond to (instead of `click`) by
   * providing an `events` array in the `ui-sref-opts` attribute.
   *
   * #### Example:
   * ```html
   * <input type="text" ui-sref="contacts" ui-sref-opts="{ events: ['change', 'blur'] }">
   * ```
   *
   * ### Highlighting the active link
   * This directive can be used in conjunction with [[uiSrefActive]] to highlight the active link.
   *
   * ### Examples
   * If you have the following template:
   *
   * ```html
   * <a ui-sref="home">Home</a>
   * <a ui-sref="about">About</a>
   * <a ui-sref="{page: 2}">Next page</a>
   *
   * <ul>
   *     <li ng-repeat="contact in contacts">
   *         <a ui-sref="contacts.detail({ id: contact.id })">{{ contact.name }}</a>
   *     </li>
   * </ul>
   * ```
   *
   * Then (assuming the current state is `contacts`) the rendered html including hrefs would be:
   *
   * ```html
   * <a href="#/home" ui-sref="home">Home</a>
   * <a href="#/about" ui-sref="about">About</a>
   * <a href="#/contacts?page=2" ui-sref="{page: 2}">Next page</a>
   *
   * <ul>
   *     <li ng-repeat="contact in contacts">
   *         <a href="#/contacts/1" ui-sref="contacts.detail({ id: contact.id })">Joe</a>
   *     </li>
   *     <li ng-repeat="contact in contacts">
   *         <a href="#/contacts/2" ui-sref="contacts.detail({ id: contact.id })">Alice</a>
   *     </li>
   *     <li ng-repeat="contact in contacts">
   *         <a href="#/contacts/3" ui-sref="contacts.detail({ id: contact.id })">Bob</a>
   *     </li>
   * </ul>
   *
   * <a href="#/home" ui-sref="home" ui-sref-opts="{reload: true}">Home</a>
   * ```
   *
   * ### Notes
   *
   * - You can use `ui-sref` to change **only the parameter values** by omitting the state name and parentheses.
   * #### Example:
   * Sets the `lang` parameter to `en` and remains on the same state.
   *
   * ```html
   * <a ui-sref="{ lang: 'en' }">English</a>
   * ```
   *
   * - A middle-click, right-click, or ctrl-click is handled (natively) by the browser to open the href in a new window, for example.
   *
   * - Unlike the parameter values expression, the state name is not `$watch`ed (for performance reasons).
   * If you need to dynamically update the state being linked to, use the fully dynamic [[uiState]] directive.
   */
  var uiSref;
  uiSref = ['$uiRouter', '$timeout',
    function $StateRefDirective($uiRouter, $timeout) {
      var $state = $uiRouter.stateService;
      return {
        restrict: 'A',
        require: ['?^uiSrefActive', '?^uiSrefActiveEq'],
        link: function (scope, element, attrs, uiSrefActive) {
          var type = getTypeInfo(element);
          var active = uiSrefActive[1] || uiSrefActive[0];
          var unlinkInfoFn = null;
          var hookFn;
          var rawDef = {};
          var getDef = function () { return processedDef($state, element, rawDef); };
          var ref = parseStateRef(attrs.uiSref);
          rawDef.uiState = ref.state;
          rawDef.uiStateOpts = attrs.uiSrefOpts ? scope.$eval(attrs.uiSrefOpts) : {};
          function update() {
            var def = getDef();
            if (unlinkInfoFn)
              unlinkInfoFn();
            if (active)
              unlinkInfoFn = active.$$addStateInfo(def.uiState, def.uiStateParams);
            if (def.href != null)
              attrs.$set(type.attr, def.href);
          }
          if (ref.paramExpr) {
            scope.$watch(ref.paramExpr, function (val) {
              rawDef.uiStateParams = extend({}, val);
              update();
            }, true);
            rawDef.uiStateParams = extend({}, scope.$eval(ref.paramExpr));
          }
          update();
          scope.$on('$destroy', $uiRouter.stateRegistry.onStatesChanged(update));
          scope.$on('$destroy', $uiRouter.transitionService.onSuccess({}, update));
          if (!type.clickable)
            return;
          hookFn = clickHook(element, $state, $timeout, type, getDef);
          bindEvents(element, scope, hookFn, rawDef.uiStateOpts);
        }
      };
    }];
  /**
   * `ui-state`: A fully dynamic directive for linking to a state
   *
   * A directive which links to a state (and optionally, parameters).
   * When clicked, this directive activates the linked state with the supplied parameter values.
   *
   * **This directive is very similar to [[uiSref]], but it `$observe`s and `$watch`es/evaluates all its inputs.**
   *
   * A directive which links to a state (and optionally, parameters).
   * When clicked, this directive activates the linked state with the supplied parameter values.
   *
   * ### Linked State
   * The attribute value of `ui-state` is an expression which is `$watch`ed and evaluated as the state to link to.
   * **This is in contrast with `ui-sref`, which takes a state name as a string literal.**
   *
   * #### Example:
   * Create a list of links.
   * ```html
   * <li ng-repeat="link in navlinks">
   *   <a ui-state="link.state">{{ link.displayName }}</a>
   * </li>
   * ```
   *
   * ### Relative Links
   * If the expression evaluates to a relative path, it is processed like [[uiSref]].
   * You just need to be aware that the path is relative to the state that *created* the link.
   * This allows a state to create relative `ui-state` which always targets the same destination.
   *
   * ### hrefs
   * If the linked state has a URL, the directive will automatically generate and
   * update the `href` attribute (using the [[StateService.href]]  method).
   *
   * ### Parameter Values
   * In addition to the state name expression, a `ui-state` can include parameter values which are applied when activating the state.
   * Param values should be provided using the `ui-state-params` attribute.
   * The `ui-state-params` attribute value is `$watch`ed and evaluated as an expression.
   *
   * #### Example:
   * This example renders a list of links with param values.
   * The state's `userId` parameter value comes from each user's `user.id` property.
   * ```html
   * <li ng-repeat="link in navlinks">
   *   <a ui-state="link.state" ui-state-params="link.params">{{ link.displayName }}</a>
   * </li>
   * ```
   *
   * ### Transition Options
   * You can specify [[TransitionOptions]] to pass to [[StateService.go]] by using the `ui-state-opts` attribute.
   * Options are restricted to `location`, `inherit`, and `reload`.
   * The value of the `ui-state-opts` is `$watch`ed and evaluated as an expression.
   *
   * #### Example:
   * ```html
   * <a ui-state="returnto.state" ui-state-opts="{ reload: true }">Home</a>
   * ```
   *
   * ### Other DOM Events
   *
   * You can also customize which DOM events to respond to (instead of `click`) by
   * providing an `events` array in the `ui-state-opts` attribute.
   *
   * #### Example:
   * ```html
   * <input type="text" ui-state="contacts" ui-state-opts="{ events: ['change', 'blur'] }">
   * ```
   *
   * ### Highlighting the active link
   * This directive can be used in conjunction with [[uiSrefActive]] to highlight the active link.
   *
   * ### Notes
   *
   * - You can use `ui-params` to change **only the parameter values** by omitting the state name and supplying only `ui-state-params`.
   *   However, it might be simpler to use [[uiSref]] parameter-only links.
   *
   * #### Example:
   * Sets the `lang` parameter to `en` and remains on the same state.
   *
   * ```html
   * <a ui-state="" ui-state-params="{ lang: 'en' }">English</a>
   * ```
   *
   * - A middle-click, right-click, or ctrl-click is handled (natively) by the browser to open the href in a new window, for example.
   * ```
   */
  var uiState;
  uiState = ['$uiRouter', '$timeout',
    function $StateRefDynamicDirective($uiRouter, $timeout) {
      var $state = $uiRouter.stateService;
      return {
        restrict: 'A',
        require: ['?^uiSrefActive', '?^uiSrefActiveEq'],
        link: function (scope, element, attrs, uiSrefActive) {
          var type = getTypeInfo(element);
          var active = uiSrefActive[1] || uiSrefActive[0];
          var unlinkInfoFn = null;
          var hookFn;
          var rawDef = {};
          var getDef = function () { return processedDef($state, element, rawDef); };
          var inputAttrs = ['uiState', 'uiStateParams', 'uiStateOpts'];
          var watchDeregFns = inputAttrs.reduce(function (acc, attr) { return (acc[attr] = noop$1, acc); }, {});
          function update() {
            var def = getDef();
            if (unlinkInfoFn)
              unlinkInfoFn();
            if (active)
              unlinkInfoFn = active.$$addStateInfo(def.uiState, def.uiStateParams);
            if (def.href != null)
              attrs.$set(type.attr, def.href);
          }
          inputAttrs.forEach(function (field) {
            rawDef[field] = attrs[field] ? scope.$eval(attrs[field]) : null;
            attrs.$observe(field, function (expr) {
              watchDeregFns[field]();
              watchDeregFns[field] = scope.$watch(expr, function (newval) {
                rawDef[field] = newval;
                update();
              }, true);
            });
          });
          update();
          scope.$on('$destroy', $uiRouter.stateRegistry.onStatesChanged(update));
          scope.$on('$destroy', $uiRouter.transitionService.onSuccess({}, update));
          if (!type.clickable)
            return;
          hookFn = clickHook(element, $state, $timeout, type, getDef);
          bindEvents(element, scope, hookFn, rawDef.uiStateOpts);
        }
      };
    }];
  /**
   * `ui-sref-active` and `ui-sref-active-eq`: A directive that adds a CSS class when a `ui-sref` is active
   *
   * A directive working alongside [[uiSref]] and [[uiState]] to add classes to an element when the
   * related directive's state is active (and remove them when it is inactive).
   *
   * The primary use-case is to highlight the active link in navigation menus,
   * distinguishing it from the inactive menu items.
   *
   * ### Linking to a `ui-sref` or `ui-state`
   * `ui-sref-active` can live on the same element as `ui-sref`/`ui-state`, or it can be on a parent element.
   * If a `ui-sref-active` is a parent to more than one `ui-sref`/`ui-state`, it will apply the CSS class when **any of the links are active**.
   *
   * ### Matching
   *
   * The `ui-sref-active` directive applies the CSS class when the `ui-sref`/`ui-state`'s target state **or any child state is active**.
   * This is a "fuzzy match" which uses [[StateService.includes]].
   *
   * The `ui-sref-active-eq` directive applies the CSS class when the `ui-sref`/`ui-state`'s target state is directly active (not when child states are active).
   * This is an "exact match" which uses [[StateService.is]].
   *
   * ### Parameter values
   * If the `ui-sref`/`ui-state` includes parameter values, the current parameter values must match the link's values for the link to be highlighted.
   * This allows a list of links to the same state with different parameters to be rendered, and the correct one highlighted.
   *
   * #### Example:
   * ```html
   * <li ng-repeat="user in users" ui-sref-active="active">
   *   <a ui-sref="user.details({ userId: user.id })">{{ user.lastName }}</a>
   * </li>
   * ```
   *
   * ### Examples
   *
   * Given the following template:
   * #### Example:
   * ```html
   * <ul>
   *   <li ui-sref-active="active" class="item">
   *     <a href ui-sref="app.user({user: 'bilbobaggins'})">@bilbobaggins</a>
   *   </li>
   * </ul>
   * ```
   *
   * When the app state is `app.user` (or any child state),
   * and contains the state parameter "user" with value "bilbobaggins",
   * the resulting HTML will appear as (note the 'active' class):
   *
   * ```html
   * <ul>
   *   <li ui-sref-active="active" class="item active">
   *     <a ui-sref="app.user({user: 'bilbobaggins'})" href="/users/bilbobaggins">@bilbobaggins</a>
   *   </li>
   * </ul>
   * ```
   *
   * ### Glob mode
   *
   * It is possible to pass `ui-sref-active` an expression that evaluates to an object.
   * The objects keys represent active class names and values represent the respective state names/globs.
   * `ui-sref-active` will match if the current active state **includes** any of
   * the specified state names/globs, even the abstract ones.
   *
   * #### Example:
   * Given the following template, with "admin" being an abstract state:
   * ```html
   * <div ui-sref-active="{'active': 'admin.**'}">
   *   <a ui-sref-active="active" ui-sref="admin.roles">Roles</a>
   * </div>
   * ```
   *
   * When the current state is "admin.roles" the "active" class will be applied to both the <div> and <a> elements.
   * It is important to note that the state names/globs passed to `ui-sref-active` override any state provided by a linked `ui-sref`.
   *
   * ### Notes:
   *
   * - The class name is interpolated **once** during the directives link time (any further changes to the
   * interpolated value are ignored).
   *
   * - Multiple classes may be specified in a space-separated format: `ui-sref-active='class1 class2 class3'`
   */
  var uiSrefActive;
  uiSrefActive = ['$state', '$stateParams', '$interpolate', '$uiRouter',
    function $StateRefActiveDirective($state, $stateParams, $interpolate, $uiRouter) {
      return {
        restrict: "A",
        controller: ['$scope', '$element', '$attrs',
          function ($scope, $element, $attrs) {
            var states = [], activeEqClass, uiSrefActive;
            // There probably isn't much point in $observing this
            // uiSrefActive and uiSrefActiveEq share the same directive object with some
            // slight difference in logic routing
            activeEqClass = $interpolate($attrs.uiSrefActiveEq || '', false)($scope);
            try {
              uiSrefActive = $scope.$eval($attrs.uiSrefActive);
            }
            catch (e) {
              // Do nothing. uiSrefActive is not a valid expression.
              // Fall back to using $interpolate below
            }
            uiSrefActive = uiSrefActive || $interpolate($attrs.uiSrefActive || '', false)($scope);
            if (isObject(uiSrefActive)) {
              forEach(uiSrefActive, function (stateOrName, activeClass) {
                if (isString(stateOrName)) {
                  var ref = parseStateRef(stateOrName);
                  addState(ref.state, $scope.$eval(ref.paramExpr), activeClass);
                }
              });
            }
            // Allow uiSref to communicate with uiSrefActive[Equals]
            this.$$addStateInfo = function (newState, newParams) {
              // we already got an explicit state provided by ui-sref-active, so we
              // shadow the one that comes from ui-sref
              if (isObject(uiSrefActive) && states.length > 0) {
                return;
              }
              var deregister = addState(newState, newParams, uiSrefActive);
              update();
              return deregister;
            };
            function updateAfterTransition(trans) {
              trans.promise.then(update, noop$1);
            }
            $scope.$on('$stateChangeSuccess', update);
            $scope.$on('$destroy', $uiRouter.transitionService.onStart({}, updateAfterTransition));
            if ($uiRouter.globals.transition) {
              updateAfterTransition($uiRouter.globals.transition);
            }
            function addState(stateName, stateParams, activeClass) {
              var state = $state.get(stateName, stateContext($element));
              var stateInfo = {
                state: state || { name: stateName },
                params: stateParams,
                activeClass: activeClass
              };
              states.push(stateInfo);
              return function removeState() {
                removeFrom(states)(stateInfo);
              };
            }
            // Update route state
            function update() {
              var splitClasses = function (str) {
                return str.split(/\s/).filter(identity);
              };
              var getClasses = function (stateList) {
                return stateList.map(function (x) { return x.activeClass; }).map(splitClasses).reduce(unnestR, []);
              };
              var allClasses = getClasses(states).concat(splitClasses(activeEqClass)).reduce(uniqR, []);
              var fuzzyClasses = getClasses(states.filter(function (x) { return $state.includes(x.state.name, x.params); }));
              var exactlyMatchesAny = !!states.filter(function (x) { return $state.is(x.state.name, x.params); }).length;
              var exactClasses = exactlyMatchesAny ? splitClasses(activeEqClass) : [];
              var addClasses = fuzzyClasses.concat(exactClasses).reduce(uniqR, []);
              var removeClasses = allClasses.filter(function (cls) { return !inArray(addClasses, cls); });
              $scope.$evalAsync(function () {
                addClasses.forEach(function (className) { return $element.addClass(className); });
                removeClasses.forEach(function (className) { return $element.removeClass(className); });
              });
            }
            update();
          }]
      };
    }];
  ng.module('ui.router.state')
    .directive('uiSref', uiSref)
    .directive('uiSrefActive', uiSrefActive)
    .directive('uiSrefActiveEq', uiSrefActive)
    .directive('uiState', uiState);

  /** @module ng1 */ /** for typedoc */
  /**
   * `isState` Filter: truthy if the current state is the parameter
   *
   * Translates to [[StateService.is]] `$state.is("stateName")`.
   *
   * #### Example:
   * ```html
   * <div ng-if="'stateName' | isState">show if state is 'stateName'</div>
   * ```
   */
  $IsStateFilter.$inject = ['$state'];
  function $IsStateFilter($state) {
    var isFilter = function (state, params, options) {
      return $state.is(state, params, options);
    };
    isFilter.$stateful = true;
    return isFilter;
  }
  /**
   * `includedByState` Filter: truthy if the current state includes the parameter
   *
   * Translates to [[StateService.includes]]` $state.is("fullOrPartialStateName")`.
   *
   * #### Example:
   * ```html
   * <div ng-if="'fullOrPartialStateName' | includedByState">show if state includes 'fullOrPartialStateName'</div>
   * ```
   */
  $IncludedByStateFilter.$inject = ['$state'];
  function $IncludedByStateFilter($state) {
    var includesFilter = function (state, params, options) {
      return $state.includes(state, params, options);
    };
    includesFilter.$stateful = true;
    return includesFilter;
  }
  ng.module('ui.router.state')
    .filter('isState', $IsStateFilter)
    .filter('includedByState', $IncludedByStateFilter);

  /**
   * @ng1api
   * @module directives
   */ /** for typedoc */
  /**
   * `ui-view`: A viewport directive which is filled in by a view from the active state.
   *
   * ### Attributes
   *
   * - `name`: (Optional) A view name.
   *   The name should be unique amongst the other views in the same state.
   *   You can have views of the same name that live in different states.
   *   The ui-view can be targeted in a View using the name ([[Ng1StateDeclaration.views]]).
   *
   * - `autoscroll`: an expression. When it evaluates to true, the `ui-view` will be scrolled into view when it is activated.
   *   Uses [[$uiViewScroll]] to do the scrolling.
   *
   * - `onload`: Expression to evaluate whenever the view updates.
   *
   * #### Example:
   * A view can be unnamed or named.
   * ```html
   * <!-- Unnamed -->
   * <div ui-view></div>
   *
   * <!-- Named -->
   * <div ui-view="viewName"></div>
   *
   * <!-- Named (different style) -->
   * <ui-view name="viewName"></ui-view>
   * ```
   *
   * You can only have one unnamed view within any template (or root html). If you are only using a
   * single view and it is unnamed then you can populate it like so:
   *
   * ```html
   * <div ui-view></div>
   * $stateProvider.state("home", {
 *   template: "<h1>HELLO!</h1>"
 * })
   * ```
   *
   * The above is a convenient shortcut equivalent to specifying your view explicitly with the
   * [[Ng1StateDeclaration.views]] config property, by name, in this case an empty name:
   *
   * ```js
   * $stateProvider.state("home", {
 *   views: {
 *     "": {
 *       template: "<h1>HELLO!</h1>"
 *     }
 *   }
 * })
   * ```
   *
   * But typically you'll only use the views property if you name your view or have more than one view
   * in the same template. There's not really a compelling reason to name a view if its the only one,
   * but you could if you wanted, like so:
   *
   * ```html
   * <div ui-view="main"></div>
   * ```
   *
   * ```js
   * $stateProvider.state("home", {
 *   views: {
 *     "main": {
 *       template: "<h1>HELLO!</h1>"
 *     }
 *   }
 * })
   * ```
   *
   * Really though, you'll use views to set up multiple views:
   *
   * ```html
   * <div ui-view></div>
   * <div ui-view="chart"></div>
   * <div ui-view="data"></div>
   * ```
   *
   * ```js
   * $stateProvider.state("home", {
 *   views: {
 *     "": {
 *       template: "<h1>HELLO!</h1>"
 *     },
 *     "chart": {
 *       template: "<chart_thing/>"
 *     },
 *     "data": {
 *       template: "<data_thing/>"
 *     }
 *   }
 * })
   * ```
   *
   * #### Examples for `autoscroll`:
   * ```html
   * <!-- If autoscroll present with no expression,
   *      then scroll ui-view into view -->
   * <ui-view autoscroll/>
   *
   * <!-- If autoscroll present with valid expression,
   *      then scroll ui-view into view if expression evaluates to true -->
   * <ui-view autoscroll='true'/>
   * <ui-view autoscroll='false'/>
   * <ui-view autoscroll='scopeVariable'/>
   * ```
   *
   * Resolve data:
   *
   * The resolved data from the state's `resolve` block is placed on the scope as `$resolve` (this
   * can be customized using [[Ng1ViewDeclaration.resolveAs]]).  This can be then accessed from the template.
   *
   * Note that when `controllerAs` is being used, `$resolve` is set on the controller instance *after* the
   * controller is instantiated.  The `$onInit()` hook can be used to perform initialization code which
   * depends on `$resolve` data.
   *
   * #### Example:
   * ```js
   * $stateProvider.state('home', {
 *   template: '<my-component user="$resolve.user"></my-component>',
 *   resolve: {
 *     user: function(UserService) { return UserService.fetchUser(); }
 *   }
 * });
   * ```
   */
  var uiView;
  uiView = ['$view', '$animate', '$uiViewScroll', '$interpolate', '$q',
    function $ViewDirective($view, $animate, $uiViewScroll, $interpolate, $q) {
      function getRenderer(attrs, scope) {
        return {
          enter: function (element, target, cb) {
            if (ng.version.minor > 2) {
              $animate.enter(element, null, target).then(cb);
            }
            else {
              $animate.enter(element, null, target, cb);
            }
          },
          leave: function (element, cb) {
            if (ng.version.minor > 2) {
              $animate.leave(element).then(cb);
            }
            else {
              $animate.leave(element, cb);
            }
          }
        };
      }
      function configsEqual(config1, config2) {
        return config1 === config2;
      }
      var rootData = {
        $cfg: { viewDecl: { $context: $view._pluginapi._rootViewContext() } },
        $uiView: {}
      };
      var directive = {
        count: 0,
        restrict: 'ECA',
        terminal: true,
        priority: 400,
        transclude: 'element',
        compile: function (tElement, tAttrs, $transclude) {
          return function (scope, $element, attrs) {
            var previousEl, currentEl, currentScope, unregister, onloadExp = attrs['onload'] || '', autoScrollExp = attrs['autoscroll'], renderer = getRenderer(attrs, scope), viewConfig = undefined, inherited = $element.inheritedData('$uiView') || rootData, name = $interpolate(attrs['uiView'] || attrs['name'] || '')(scope) || '$default';
            var activeUIView = {
              $type: 'ng1',
              id: directive.count++,
              name: name,
              fqn: inherited.$uiView.fqn ? inherited.$uiView.fqn + "." + name : name,
              config: null,
              configUpdated: configUpdatedCallback,
              get creationContext() {
                var fromParentTagConfig = parse('$cfg.viewDecl.$context')(inherited);
                // Allow <ui-view name="foo"><ui-view name="bar"></ui-view></ui-view>
                // See https://github.com/angular-ui/ui-router/issues/3355
                var fromParentTag = parse('$uiView.creationContext')(inherited);
                return fromParentTagConfig || fromParentTag;
              }
            };
            trace.traceUIViewEvent("Linking", activeUIView);
            function configUpdatedCallback(config) {
              if (config && !(config instanceof Ng1ViewConfig))
                return;
              if (configsEqual(viewConfig, config))
                return;
              trace.traceUIViewConfigUpdated(activeUIView, config && config.viewDecl && config.viewDecl.$context);
              viewConfig = config;
              updateView(config);
            }
            $element.data('$uiView', { $uiView: activeUIView });
            updateView();
            unregister = $view.registerUIView(activeUIView);
            scope.$on("$destroy", function () {
              trace.traceUIViewEvent("Destroying/Unregistering", activeUIView);
              unregister();
            });
            function cleanupLastView() {
              if (previousEl) {
                trace.traceUIViewEvent("Removing (previous) el", previousEl.data('$uiView'));
                previousEl.remove();
                previousEl = null;
              }
              if (currentScope) {
                trace.traceUIViewEvent("Destroying scope", activeUIView);
                currentScope.$destroy();
                currentScope = null;
              }
              if (currentEl) {
                var _viewData_1 = currentEl.data('$uiViewAnim');
                trace.traceUIViewEvent("Animate out", _viewData_1);
                renderer.leave(currentEl, function () {
                  _viewData_1.$$animLeave.resolve();
                  previousEl = null;
                });
                previousEl = currentEl;
                currentEl = null;
              }
            }
            function updateView(config) {
              var newScope = scope.$new();
              var animEnter = $q.defer(), animLeave = $q.defer();
              var $uiViewData = {
                $cfg: config,
                $uiView: activeUIView,
              };
              var $uiViewAnim = {
                $animEnter: animEnter.promise,
                $animLeave: animLeave.promise,
                $$animLeave: animLeave
              };
              /**
               * @ngdoc event
               * @name ui.router.state.directive:ui-view#$viewContentLoading
               * @eventOf ui.router.state.directive:ui-view
               * @eventType emits on ui-view directive scope
               * @description
               *
               * Fired once the view **begins loading**, *before* the DOM is rendered.
               *
               * @param {Object} event Event object.
               * @param {string} viewName Name of the view.
               */
              newScope.$emit('$viewContentLoading', name);
              var cloned = $transclude(newScope, function (clone) {
                clone.data('$uiViewAnim', $uiViewAnim);
                clone.data('$uiView', $uiViewData);
                renderer.enter(clone, $element, function onUIViewEnter() {
                  animEnter.resolve();
                  if (currentScope)
                    currentScope.$emit('$viewContentAnimationEnded');
                  if (isDefined(autoScrollExp) && !autoScrollExp || scope.$eval(autoScrollExp)) {
                    $uiViewScroll(clone);
                  }
                });
                cleanupLastView();
              });
              currentEl = cloned;
              currentScope = newScope;
              /**
               * @ngdoc event
               * @name ui.router.state.directive:ui-view#$viewContentLoaded
               * @eventOf ui.router.state.directive:ui-view
               * @eventType emits on ui-view directive scope
               * @description           *
               * Fired once the view is **loaded**, *after* the DOM is rendered.
               *
               * @param {Object} event Event object.
               */
              currentScope.$emit('$viewContentLoaded', config || viewConfig);
              currentScope.$eval(onloadExp);
            }
          };
        }
      };
      return directive;
    }];
  $ViewDirectiveFill.$inject = ['$compile', '$controller', '$transitions', '$view', '$q', '$timeout'];
  /** @hidden */
  function $ViewDirectiveFill($compile, $controller, $transitions, $view, $q, $timeout) {
    var getControllerAs = parse('viewDecl.controllerAs');
    var getResolveAs = parse('viewDecl.resolveAs');
    return {
      restrict: 'ECA',
      priority: -400,
      compile: function (tElement) {
        var initial = tElement.html();
        tElement.empty();
        return function (scope, $element) {
          var data = $element.data('$uiView');
          if (!data) {
            $element.html(initial);
            $compile($element.contents())(scope);
            return;
          }
          var cfg = data.$cfg || { viewDecl: {}, getTemplate: ng_from_import.noop };
          var resolveCtx = cfg.path && new ResolveContext(cfg.path);
          $element.html(cfg.getTemplate($element, resolveCtx) || initial);
          trace.traceUIViewFill(data.$uiView, $element.html());
          var link = $compile($element.contents());
          var controller = cfg.controller;
          var controllerAs = getControllerAs(cfg);
          var resolveAs = getResolveAs(cfg);
          var locals = resolveCtx && getLocals(resolveCtx);
          scope[resolveAs] = locals;
          if (controller) {
            var controllerInstance = $controller(controller, extend({}, locals, { $scope: scope, $element: $element }));
            if (controllerAs) {
              scope[controllerAs] = controllerInstance;
              scope[controllerAs][resolveAs] = locals;
            }
            // TODO: Use $view service as a central point for registering component-level hooks
            // Then, when a component is created, tell the $view service, so it can invoke hooks
            // $view.componentLoaded(controllerInstance, { $scope: scope, $element: $element });
            // scope.$on('$destroy', () => $view.componentUnloaded(controllerInstance, { $scope: scope, $element: $element }));
            $element.data('$ngControllerController', controllerInstance);
            $element.children().data('$ngControllerController', controllerInstance);
            registerControllerCallbacks($q, $transitions, controllerInstance, scope, cfg);
          }
          // Wait for the component to appear in the DOM
          if (isString(cfg.viewDecl.component)) {
            var cmp_1 = cfg.viewDecl.component;
            var kebobName = kebobString(cmp_1);
            var tagRegexp_1 = new RegExp("^(x-|data-)?" + kebobName + "$", "i");
            var getComponentController = function () {
              var directiveEl = [].slice.call($element[0].children)
                .filter(function (el) { return el && el.tagName && tagRegexp_1.exec(el.tagName); });
              return directiveEl && ng.element(directiveEl).data("$" + cmp_1 + "Controller");
            };
            var deregisterWatch_1 = scope.$watch(getComponentController, function (ctrlInstance) {
              if (!ctrlInstance)
                return;
              registerControllerCallbacks($q, $transitions, ctrlInstance, scope, cfg);
              deregisterWatch_1();
            });
          }
          link(scope);
        };
      }
    };
  }
  /** @hidden */
  var hasComponentImpl = typeof ng.module('ui.router')['component'] === 'function';
  /** @hidden incrementing id */
  var _uiCanExitId = 0;
  /** @hidden TODO: move these callbacks to $view and/or `/hooks/components.ts` or something */
  function registerControllerCallbacks($q, $transitions, controllerInstance, $scope, cfg) {
    // Call $onInit() ASAP
    if (isFunction(controllerInstance.$onInit) && !(cfg.viewDecl.component && hasComponentImpl)) {
      controllerInstance.$onInit();
    }
    var viewState = tail(cfg.path).state.self;
    var hookOptions = { bind: controllerInstance };
    // Add component-level hook for onParamsChange
    if (isFunction(controllerInstance.uiOnParamsChanged)) {
      var resolveContext = new ResolveContext(cfg.path);
      var viewCreationTrans_1 = resolveContext.getResolvable('$transition$').data;
      // Fire callback on any successful transition
      var paramsUpdated = function ($transition$) {
        // Exit early if the $transition$ is the same as the view was created within.
        // Exit early if the $transition$ will exit the state the view is for.
        if ($transition$ === viewCreationTrans_1 || $transition$.exiting().indexOf(viewState) !== -1)
          return;
        var toParams = $transition$.params("to");
        var fromParams = $transition$.params("from");
        var toSchema = $transition$.treeChanges().to.map(function (node) { return node.paramSchema; }).reduce(unnestR, []);
        var fromSchema = $transition$.treeChanges().from.map(function (node) { return node.paramSchema; }).reduce(unnestR, []);
        // Find the to params that have different values than the from params
        var changedToParams = toSchema.filter(function (param) {
          var idx = fromSchema.indexOf(param);
          return idx === -1 || !fromSchema[idx].type.equals(toParams[param.id], fromParams[param.id]);
        });
        // Only trigger callback if a to param has changed or is new
        if (changedToParams.length) {
          var changedKeys_1 = changedToParams.map(function (x) { return x.id; });
          // Filter the params to only changed/new to params.  `$transition$.params()` may be used to get all params.
          var newValues = filter(toParams, function (val, key) { return changedKeys_1.indexOf(key) !== -1; });
          controllerInstance.uiOnParamsChanged(newValues, $transition$);
        }
      };
      $scope.$on('$destroy', $transitions.onSuccess({}, paramsUpdated, hookOptions));
    }
    // Add component-level hook for uiCanExit
    if (isFunction(controllerInstance.uiCanExit)) {
      var id_1 = _uiCanExitId++;
      var cacheProp_1 = '_uiCanExitIds';
      // Returns true if a redirect transition already answered truthy
      var prevTruthyAnswer_1 = function (trans) {
        return !!trans && (trans[cacheProp_1] && trans[cacheProp_1][id_1] === true || prevTruthyAnswer_1(trans.redirectedFrom()));
      };
      // If a user answered yes, but the transition was later redirected, don't also ask for the new redirect transition
      var wrappedHook = function (trans) {
        var promise, ids = trans[cacheProp_1] = trans[cacheProp_1] || {};
        if (!prevTruthyAnswer_1(trans)) {
          promise = $q.when(controllerInstance.uiCanExit(trans));
          promise.then(function (val) { return ids[id_1] = (val !== false); });
        }
        return promise;
      };
      var criteria = { exiting: viewState.name };
      $scope.$on('$destroy', $transitions.onBefore(criteria, wrappedHook, hookOptions));
    }
  }
  ng.module('ui.router.state').directive('uiView', uiView);
  ng.module('ui.router.state').directive('uiView', $ViewDirectiveFill);

  /** @module ng1 */ /** */
  /** @hidden */
  function $ViewScrollProvider() {
    var useAnchorScroll = false;
    this.useAnchorScroll = function () {
      useAnchorScroll = true;
    };
    this.$get = ['$anchorScroll', '$timeout', function ($anchorScroll, $timeout) {
      if (useAnchorScroll) {
        return $anchorScroll;
      }
      return function ($element) {
        return $timeout(function () {
          $element[0].scrollIntoView();
        }, 0, false);
      };
    }];
  }
  ng.module('ui.router.state').provider('$uiViewScroll', $ViewScrollProvider);

  /**
   * Main entry point for angular 1.x build
   * @module ng1
   */ /** */
  var index = "ui.router";

  exports['default'] = index;
  exports.core = index$1;
  exports.watchDigests = watchDigests;
  exports.getLocals = getLocals;
  exports.getNg1ViewConfigFactory = getNg1ViewConfigFactory;
  exports.ng1ViewsBuilder = ng1ViewsBuilder;
  exports.Ng1ViewConfig = Ng1ViewConfig;
  exports.StateProvider = StateProvider;
  exports.UrlRouterProvider = UrlRouterProvider;
  exports.root = root;
  exports.fromJson = fromJson;
  exports.toJson = toJson;
  exports.forEach = forEach;
  exports.extend = extend;
  exports.equals = equals;
  exports.identity = identity;
  exports.noop = noop$1;
  exports.createProxyFunctions = createProxyFunctions;
  exports.inherit = inherit;
  exports.inArray = inArray;
  exports._inArray = _inArray;
  exports.removeFrom = removeFrom;
  exports._removeFrom = _removeFrom;
  exports.pushTo = pushTo;
  exports._pushTo = _pushTo;
  exports.deregAll = deregAll;
  exports.defaults = defaults;
  exports.mergeR = mergeR;
  exports.ancestors = ancestors;
  exports.pick = pick;
  exports.omit = omit;
  exports.pluck = pluck;
  exports.filter = filter;
  exports.find = find;
  exports.mapObj = mapObj;
  exports.map = map;
  exports.values = values;
  exports.allTrueR = allTrueR;
  exports.anyTrueR = anyTrueR;
  exports.unnestR = unnestR;
  exports.flattenR = flattenR;
  exports.pushR = pushR;
  exports.uniqR = uniqR;
  exports.unnest = unnest;
  exports.flatten = flatten;
  exports.assertPredicate = assertPredicate;
  exports.assertMap = assertMap;
  exports.assertFn = assertFn;
  exports.pairs = pairs;
  exports.arrayTuples = arrayTuples;
  exports.applyPairs = applyPairs;
  exports.tail = tail;
  exports.copy = copy;
  exports._extend = _extend;
  exports.silenceUncaughtInPromise = silenceUncaughtInPromise;
  exports.silentRejection = silentRejection;
  exports.notImplemented = notImplemented;
  exports.services = services;
  exports.Glob = Glob;
  exports.curry = curry;
  exports.compose = compose;
  exports.pipe = pipe;
  exports.prop = prop;
  exports.propEq = propEq;
  exports.parse = parse;
  exports.not = not;
  exports.and = and;
  exports.or = or;
  exports.all = all;
  exports.any = any;
  exports.is = is;
  exports.eq = eq;
  exports.val = val;
  exports.invoke = invoke;
  exports.pattern = pattern;
  exports.isUndefined = isUndefined;
  exports.isDefined = isDefined;
  exports.isNull = isNull;
  exports.isNullOrUndefined = isNullOrUndefined;
  exports.isFunction = isFunction;
  exports.isNumber = isNumber;
  exports.isString = isString;
  exports.isObject = isObject;
  exports.isArray = isArray;
  exports.isDate = isDate;
  exports.isRegExp = isRegExp;
  exports.isState = isState;
  exports.isInjectable = isInjectable;
  exports.isPromise = isPromise;
  exports.Queue = Queue;
  exports.maxLength = maxLength;
  exports.padString = padString;
  exports.kebobString = kebobString;
  exports.functionToString = functionToString;
  exports.fnToString = fnToString;
  exports.stringify = stringify;
  exports.beforeAfterSubstr = beforeAfterSubstr;
  exports.hostRegex = hostRegex;
  exports.stripFile = stripFile;
  exports.splitHash = splitHash;
  exports.splitQuery = splitQuery;
  exports.splitEqual = splitEqual;
  exports.trimHashVal = trimHashVal;
  exports.splitOnDelim = splitOnDelim;
  exports.joinNeighborsR = joinNeighborsR;
  exports.Trace = Trace;
  exports.trace = trace;
  exports.Param = Param;
  exports.ParamTypes = ParamTypes;
  exports.StateParams = StateParams;
  exports.ParamType = ParamType;
  exports.PathNode = PathNode;
  exports.PathUtils = PathUtils;
  exports.resolvePolicies = resolvePolicies;
  exports.defaultResolvePolicy = defaultResolvePolicy;
  exports.Resolvable = Resolvable;
  exports.NATIVE_INJECTOR_TOKEN = NATIVE_INJECTOR_TOKEN;
  exports.ResolveContext = ResolveContext;
  exports.resolvablesBuilder = resolvablesBuilder;
  exports.StateBuilder = StateBuilder;
  exports.StateObject = StateObject;
  exports.StateMatcher = StateMatcher;
  exports.StateQueueManager = StateQueueManager;
  exports.StateRegistry = StateRegistry;
  exports.StateService = StateService;
  exports.TargetState = TargetState;
  exports.HookBuilder = HookBuilder;
  exports.matchState = matchState;
  exports.RegisteredHook = RegisteredHook;
  exports.makeEvent = makeEvent;
  exports.Rejection = Rejection;
  exports.Transition = Transition;
  exports.TransitionHook = TransitionHook;
  exports.TransitionEventType = TransitionEventType;
  exports.defaultTransOpts = defaultTransOpts;
  exports.TransitionService = TransitionService;
  exports.UrlMatcher = UrlMatcher;
  exports.UrlMatcherFactory = UrlMatcherFactory;
  exports.UrlRouter = UrlRouter;
  exports.UrlRuleFactory = UrlRuleFactory;
  exports.BaseUrlRule = BaseUrlRule;
  exports.UrlService = UrlService;
  exports.ViewService = ViewService;
  exports.UIRouterGlobals = UIRouterGlobals;
  exports.UIRouter = UIRouter;
  exports.$q = $q;
  exports.$injector = $injector;
  exports.BaseLocationServices = BaseLocationServices;
  exports.HashLocationService = HashLocationService;
  exports.MemoryLocationService = MemoryLocationService;
  exports.PushStateLocationService = PushStateLocationService;
  exports.MemoryLocationConfig = MemoryLocationConfig;
  exports.BrowserLocationConfig = BrowserLocationConfig;
  exports.keyValsToObjectR = keyValsToObjectR;
  exports.getParams = getParams;
  exports.parseUrl = parseUrl$1;
  exports.buildUrl = buildUrl;
  exports.locationPluginFactory = locationPluginFactory;
  exports.servicesPlugin = servicesPlugin;
  exports.hashLocationPlugin = hashLocationPlugin;
  exports.pushStateLocationPlugin = pushStateLocationPlugin;
  exports.memoryLocationPlugin = memoryLocationPlugin;
  exports.UIRouterPluginBase = UIRouterPluginBase;

  Object.defineProperty(exports, '__esModule', { value: true });

})));